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Full vulnerability report · 2026
CVE-2026-0864High confidence

Configuration Injection via Carriage Return (\r) in write() method

Python Software Foundation · CPython

4.1MediumCVSS 4.0
Recommended action
Patch only the product branches with a verified fix

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority. Verified remediation exists for at least one product or source, but 104 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityMediumOperational priority:Low, lowered one band.downgradedsince 13 Aug 2026

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • Exploitation requires an existing local or physical foothold with privileges.
  • EPSS is 0.13% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict local access and enforce least privilege on affected hosts.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Python Software Foundation CPython and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: No default targetRemediation target: Normal maintenance

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Cross-source reconciliation

Remediation availability differs by product scope

Verified remediation exists for at least one product or source, but 104 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Distribution package intelligence

Release-specific package status

Alpine, Debian, ubuntu findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.

14 package states
Package result overrides the generic status

BlackTree has verified remediation for at least one product or source, but the relevant distribution still reports no fixed package for 3 affected package states shown here. Treat those rows as affected with no fix until that distribution publishes a fixed version.

Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Distribution releaseSource packageVendor stateFixed versionEvidence
Alpine v3.23v3.23 · mainpython3Vendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.3.12.14-r0Alpine Security Database ↗Source updated 3 Oct 2026
Alpine v3.22v3.22 · mainpython3Vendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.3.12.14-r0Alpine Security Database ↗Source updated 3 Oct 2026
Alpine v3.21v3.21 · mainpython3Vendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.3.12.14-r0Alpine Security Database ↗Source updated 3 Oct 2026
Debian trixietrixie · sourcepypy3Affected, no fix publishedDebian currently tracks this release as open.Not published in this feedDebian Security Tracker ↗Source updated 6 Oct 2026
Debian trixietrixie · sourcepython3.13Vendor fix publishedDebian records a fixed source-package version for this release.3.13.5-2+deb13u5Debian Security Tracker ↗Source updated 6 Oct 2026
Debian bookwormbookworm · sourcepypy3Affected, no fix publishedDebian currently tracks this release as open.Not published in this feedDebian Security Tracker ↗Source updated 6 Oct 2026
Debian bookwormbookworm · sourcepython3.11Affected, no fix publishedDebian currently tracks this release as open.Not published in this feedDebian Security Tracker ↗Source updated 6 Oct 2026
Debian forkyforky · sourcepypy3Vendor fix publishedDebian records a fixed source-package version for this release.8.0.0+dfsg-1Debian Security Tracker ↗Source updated 6 Oct 2026
Debian forkyforky · sourcepython3.13Vendor fix publishedDebian records a fixed source-package version for this release.3.13.15-1Debian Security Tracker ↗Source updated 6 Oct 2026
Debian forkyforky · sourcepython3.14Vendor fix publishedDebian records a fixed source-package version for this release.3.14.7-1Debian Security Tracker ↗Source updated 6 Oct 2026
Debian sidsid · sourcepypy3Vendor fix publishedDebian records a fixed source-package version for this release.8.0.0+dfsg-1Debian Security Tracker ↗Source updated 6 Oct 2026
Debian sidsid · sourcepython3.13Vendor fix publishedDebian records a fixed source-package version for this release.3.13.15-1Debian Security Tracker ↗Source updated 6 Oct 2026
Debian sidsid · sourcepython3.14Vendor fix publishedDebian records a fixed source-package version for this release.3.14.7-1Debian Security Tracker ↗Source updated 6 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivepython3.12Under evaluationCanonical reports that the package might be affected and still needs evaluation or fixing.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

1 current
CVE-2026-0864 · CSAF 2.0 · revision 3 · finalRed Hat Product Securitypython: cpython: Python configparser: Configuration injection via crafted multi-line input
100 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • exploit-intelligence-tech-preview/vulnerability-analysis-rhel9 as a component of Exploit Intelligence
  • python-unversioned-command as a component of Red Hat Enterprise Linux 10
  • python3 as a component of Red Hat Enterprise Linux 10
  • python3-debug as a component of Red Hat Enterprise Linux 10
  • python3-devel as a component of Red Hat Enterprise Linux 10
  • python3-idle as a component of Red Hat Enterprise Linux 10
  • python3-libs as a component of Red Hat Enterprise Linux 10
  • python3-test as a component of Red Hat Enterprise Linux 10
  • python3-tkinter as a component of Red Hat Enterprise Linux 10
  • python3.12.src as a component of Red Hat Enterprise Linux 10
  • python as a component of Red Hat Enterprise Linux 6
  • python-devel as a component of Red Hat Enterprise Linux 6
Summary
A flaw was found in the Python `configparser` module. When writing configuration files, an attacker who controls the input value can inject unexpected keys and values. This occurs if the input contains multi-line text with carriage return characters, leading to potential configuration manipulation.
Remediation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2026-38554

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionPatch only the product branches with a verified fix

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority. Verified remediation exists for at least one product or source, but 104 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
01

What, why and how

When using the "configparser" module to write configuration files containing multi-line text values with carriage return characters (\r) the resulting file could be injected with unexpected keys and values if the attacker controls the written value.

What

When using the "configparser" module to write configuration files containing multi-line text values with carriage return characters (\r) the resulting file could be injected with unexpected keys and values if the attacker controls the written value.

Why

The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.

How

An attacker operating through local access may attempt exploitation with elevated privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

When using the "configparser" module to write configuration files containing multi-line text values with carriage return characters (\r) the resulting file could be injected with unexpected keys and values if the attacker controls the written value.

Why

The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.

How

An attacker operating through local access may attempt exploitation with elevated privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
local access → Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Local
Privileges required
High: elevated access is required
User interaction
Passive interaction required
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Not a CVSS 4.0 base metric
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-74 ↗

CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection'). The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Common Vulnerability Scoring System 4.0: the compact vector below is decoded into plain language.

AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.ATPresentAttack requirements: A particular deployment or execution condition must be present.PRHighPrivileges required: The attacker needs elevated or administrative privileges.UIPassiveUser interaction: A user must unknowingly interact with the vulnerable system.VCNoneVulnerable-system confidentiality: No direct loss is represented by this metric.VIHighVulnerable-system integrity: A successful attack can cause a major loss.VANoneVulnerable-system availability: No direct loss is represented by this metric.SCNoneSubsequent-system confidentiality: No direct loss is represented by this metric.SINoneSubsequent-system integrity: No direct loss is represented by this metric.SANoneSubsequent-system availability: No direct loss is represented by this metric.
Post-exploitation / living off the land
The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.
CWE-74
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

BSI · German · WID-SEC-2026-2044CPython: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in CPython ausnutzen, um Dateien zu manipulieren, Sicherheitsmaßnahmen zu umgehen oder vertrauliche Informationen offenzulegen.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20260624Security Bulletin 24 June 2026

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 24 June 2026, published on 24 June 2026. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1249Multiples vulnérabilités dans les produits VMware

ord?id=CVE-2025-61726 Référence CVE CVE-2025-61727 https://www.cve.org/CVERecord?id=CVE-2025-61727 Référence CVE CVE-2025-61728 https://www.cve.org/CVERecord?id=CVE-2025-61728 Référence CVE CVE-2025-61729 https://www.cve.org/CVERecord?id=CVE-2025-61729 Référence CVE CVE-2025-61730 https://www.cve.org/CVERecord?id=CVE-2025-61730 Référence CVE CVE-2025-61731 https://www.cve.org/CVERecord?id=CVE-2025-61731 Référence CVE CVE-2025-61732 https://www.cve.org/CVERecord?id=CVE-2025-61732 Référence CVE CVE-2025-68121 https://www.cve.org/CVERecord?id=CVE-2025-68121 Référence CVE CVE-2025-8869 https://www.cve.org/CVERecord?id=CVE-2025-8869 Référence CVE CVE-2026-0864 https://www.cve.org/CVERecord?id=CVE-2026-0864 Référence CVE CVE-2026-101917 https://www.cve.org/CVERecord?id=CVE-2026-101917 Référence CVE CVE-2026-101918 https://www.cve.org/CVERecord?id=CVE-2026-101918 Référence CVE CVE-2026-102265 https://www.cve.org/CVERecord?id=CVE-2026-102265 Référence CVE CVE-2026-102266 https://www.cve.org/CVERecord?id=CVE-2026-102266 Référence CVE CVE-2026-102267 https://www.cve.org/CVERecord?id=CVE-2026-102267 Référence CVE CVE-2026-102268 https://www.cve.org/CVERecord?id=CVE-2026-102268 Référence CVE CVE-2026-102269 https://www.cve.org/CVERecord?id=CVE-2026-102269 Référence CVE CVE-2026-102270 https://www.cve.org

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0800Multiples vulnérabilités dans CPython

De multiples vulnérabilités ont été découvertes dans CPython. Certaines d'entre elles permettent à un attaquant de provoquer un déni de service à distance, une atteinte à la confidentialité des données et une atteinte à l'intégrité des données.

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-029069Python Software FoundationのPythonにおけるインジェクションに関する脆弱性

"configparser"モジュールを使用して、復帰文字（\r）を含む複数行のテキスト値を持つ設定ファイルを書き込む場合に、攻撃者が書き込まれる値を制御していると、生成されたファイルに予期しないキーや値が注入される可能性があります。

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Fix availability varies by product
Affected
Fixed
An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
Action
Use the product-specific evidence above. Patch only products with a verified fixed release, and keep every affected or under-investigation state without a matching fix in the remediation queue.
Workaround
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
04

Evidence and provenance

Published 23 Jun 2026 · Last source change 13 Aug 2026, 00:29 UTC · CWE-74 · Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2026-38554
Product sourceVendor CSAF · Red Hat Product Security
Remediation sourceVendor CSAF · Red Hat Product Security
CWE sourceCISA ADP
NVD statusNVD enriched

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗
  1. Affected versionsThe structured affected or fixed version information changed.
    Before
    python-unversioned-command as a component of Red Hat Enterprise Linux 10; python3 as a component of Red Hat Enterprise Linux 10; python3-debug as a component of Red Hat Enterprise Linux 10; python3-devel as a component of Red Hat Enterprise Linux 10; python3-idle as a component of Red Hat Enterprise Linux 10; python3-libs as a component of Red Hat Enterprise Linux 10; python3-test as a component of Red Hat Enterprise Linux 10; python3-tkinter as a component of Red Hat Enterprise Linux 10; python3.12.src as a component of Red Hat Enterprise Linux 10; python as a component of Red Hat Enterprise Linux 6; python-devel as a component of Red Hat Enterprise Linux 6; python-libs as a component of Red Hat Enterprise Linux 6; python-test as a component of Red Hat Enterprise Linux 6; python-tools as a component of Red Hat Enterprise Linux 6; python.src as a component of Red Hat Enterprise Linux 6; tkinter as a component of Red Hat Enterprise Linux 6; python as a component of Red Hat Enterprise Linux 7; python-debug as a component of Red Hat Enterprise Linux 7; python-devel as a component of Red Hat Enterprise Linux 7; python-libs as a component of Red Hat Enterprise Linux 7; python-test as a component of Red Hat Enterprise Linux 7; python-tools as a component of Red Hat Enterprise Linux 7; python.src as a component of Red Hat Enterprise Linux 7; python3 as a component of Red Hat Enterprise Linux 7; python3-debug as a component of Red Hat Enterprise Linux 7; python3-devel as a component of Red Hat Enterprise Linux 7; python3-idle as a component of Red Hat Enterprise Linux 7; python3-libs as a component of Red Hat Enterprise Linux 7; python3-test as a component of Red Hat Enterprise Linux 7; python3-tkinter as a component of Red Hat Enterprise Linux 7; and 69 more
    After
    exploit-intelligence-tech-preview/vulnerability-analysis-rhel9 as a component of Exploit Intelligence; python-unversioned-command as a component of Red Hat Enterprise Linux 10; python3 as a component of Red Hat Enterprise Linux 10; python3-debug as a component of Red Hat Enterprise Linux 10; python3-devel as a component of Red Hat Enterprise Linux 10; python3-idle as a component of Red Hat Enterprise Linux 10; python3-libs as a component of Red Hat Enterprise Linux 10; python3-test as a component of Red Hat Enterprise Linux 10; python3-tkinter as a component of Red Hat Enterprise Linux 10; python3.12.src as a component of Red Hat Enterprise Linux 10; python as a component of Red Hat Enterprise Linux 6; python-devel as a component of Red Hat Enterprise Linux 6; python-libs as a component of Red Hat Enterprise Linux 6; python-test as a component of Red Hat Enterprise Linux 6; python-tools as a component of Red Hat Enterprise Linux 6; python.src as a component of Red Hat Enterprise Linux 6; tkinter as a component of Red Hat Enterprise Linux 6; python as a component of Red Hat Enterprise Linux 7; python-debug as a component of Red Hat Enterprise Linux 7; python-devel as a component of Red Hat Enterprise Linux 7; python-libs as a component of Red Hat Enterprise Linux 7; python-test as a component of Red Hat Enterprise Linux 7; python-tools as a component of Red Hat Enterprise Linux 7; python.src as a component of Red Hat Enterprise Linux 7; python3 as a component of Red Hat Enterprise Linux 7; python3-debug as a component of Red Hat Enterprise Linux 7; python3-devel as a component of Red Hat Enterprise Linux 7; python3-idle as a component of Red Hat Enterprise Linux 7; python3-libs as a component of Red Hat Enterprise Linux 7; python3-test as a component of Red Hat Enterprise Linux 7; and 70 more
    Red Hat Product Security ↗
  2. Affected versionsThe structured affected or fixed version information changed.
    Before
    python-PyMySQL.src as a component of Red Hat Enterprise Linux 8; python-distro.src as a component of Red Hat Enterprise Linux 8; python-docs.src as a component of Red Hat Enterprise Linux 8; python-docutils.src as a component of Red Hat Enterprise Linux 8; python-nose-docs as a component of Red Hat Enterprise Linux 8; python-nose.src as a component of Red Hat Enterprise Linux 8; python-pygments.src as a component of Red Hat Enterprise Linux 8; python-pymongo-doc as a component of Red Hat Enterprise Linux 8; python-pymongo.src as a component of Red Hat Enterprise Linux 8; python-sqlalchemy-doc as a component of Red Hat Enterprise Linux 8; python-sqlalchemy.src as a component of Red Hat Enterprise Linux 8; python-virtualenv-doc as a component of Red Hat Enterprise Linux 8; python-virtualenv.src as a component of Red Hat Enterprise Linux 8; python-wheel.src as a component of Red Hat Enterprise Linux 8; python3-PyMySQL as a component of Red Hat Enterprise Linux 8; python3-bson as a component of Red Hat Enterprise Linux 8; python3-distro as a component of Red Hat Enterprise Linux 8; python3-docs as a component of Red Hat Enterprise Linux 8; python3-docutils as a component of Red Hat Enterprise Linux 8; python3-nose as a component of Red Hat Enterprise Linux 8; python3-pygments as a component of Red Hat Enterprise Linux 8; python3-pymongo as a component of Red Hat Enterprise Linux 8; python3-pymongo-gridfs as a component of Red Hat Enterprise Linux 8; python3-scipy as a component of Red Hat Enterprise Linux 8; python3-sqlalchemy as a component of Red Hat Enterprise Linux 8; python3-virtualenv as a component of Red Hat Enterprise Linux 8; python3-wheel as a component of Red Hat Enterprise Linux 8; python3-wheel-wheel as a component of Red Hat Enterprise Linux 8; python36 as a component of Red Hat Enterprise Linux 8; python36-debug as a component of Red Hat Enterprise Linux 8; and 4 more
    After
    python-unversioned-command as a component of Red Hat Enterprise Linux 10; python3 as a component of Red Hat Enterprise Linux 10; python3-debug as a component of Red Hat Enterprise Linux 10; python3-devel as a component of Red Hat Enterprise Linux 10; python3-idle as a component of Red Hat Enterprise Linux 10; python3-libs as a component of Red Hat Enterprise Linux 10; python3-test as a component of Red Hat Enterprise Linux 10; python3-tkinter as a component of Red Hat Enterprise Linux 10; python3.12.src as a component of Red Hat Enterprise Linux 10; python as a component of Red Hat Enterprise Linux 6; python-devel as a component of Red Hat Enterprise Linux 6; python-libs as a component of Red Hat Enterprise Linux 6; python-test as a component of Red Hat Enterprise Linux 6; python-tools as a component of Red Hat Enterprise Linux 6; python.src as a component of Red Hat Enterprise Linux 6; tkinter as a component of Red Hat Enterprise Linux 6; python as a component of Red Hat Enterprise Linux 7; python-debug as a component of Red Hat Enterprise Linux 7; python-devel as a component of Red Hat Enterprise Linux 7; python-libs as a component of Red Hat Enterprise Linux 7; python-test as a component of Red Hat Enterprise Linux 7; python-tools as a component of Red Hat Enterprise Linux 7; python.src as a component of Red Hat Enterprise Linux 7; python3 as a component of Red Hat Enterprise Linux 7; python3-debug as a component of Red Hat Enterprise Linux 7; python3-devel as a component of Red Hat Enterprise Linux 7; python3-idle as a component of Red Hat Enterprise Linux 7; python3-libs as a component of Red Hat Enterprise Linux 7; python3-test as a component of Red Hat Enterprise Linux 7; python3-tkinter as a component of Red Hat Enterprise Linux 7; and 69 more
    Red Hat Product Security ↗
  3. Vendor guidanceAuthoritative vendor guidance changed: added patch: github.com/0adb386f6e68eb2e73d32e19f235d012df009528; added patch: github.com/12dcbd74d3563016a8cb8c47e4898889f34f74dd; 9 further additions.
    Before
    no authoritative guidance recorded
    After
    patch: github.com/0adb386f6e68eb2e73d32e19f235d012df009528 · patch: github.com/12dcbd74d3563016a8cb8c47e4898889f34f74dd · patch: github.com/143927 · 8 more references
    cna@python.org ↗
  4. Affected versionsThe structured affected or fixed version information changed.
    Before
    < 3.10.21; 3.11.0 < 3.11.16; 3.12.0 < 3.12.14; 3.13.0 < 3.13.15; 3.14.0 < 3.14.7; 3.15.0a1 < 3.15.0b4 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    < 3.10.21; 3.11.0 < 3.11.16; 3.12.0 < 3.12.14; 3.13.0 < 3.13.15; 3.14.0 < 3.14.7; 3.15.0a1 < 3.15.0b4 · Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
    CNA ↗
  5. Remediation statusRemediation status changed from Awaiting fix to Patch available.
    Before
    Awaiting fix
    After
    Patch available
    cna@python.org ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2026-38554↗Vendor CSAF · Red Hat Product Security↗CVE authority or vendor reference↗Vendor advisory↗Patch or update reference↗Patch or update reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2026-0864 · cve.blacktree.nl