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Full vulnerability report · 2025
CVE-2025-59343High confidence

tar-fs has a symlink validation bypass if destination directory is predictable with a specific tarball

mafintosh · tar-fs

Official source article: GitHub GHSA-VJ76-C3G6-QR5V ↗. Check the applicable product and release in the original source.

8.7HighCVSS 4.0
Recommended action
Within 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityHighOperational priority:High, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • The selected CVSS metric records a network-reachable, unauthenticated path with no user interaction.
  • EPSS is 0.55% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict the affected network interface to trusted sources where business-safe.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs mafintosh tar-fs 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: Within 30 daysRemediation target: Within 180 days

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.

Distribution package intelligence

Release-specific package status

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

5 package states
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
Debian trixietrixie · sourcenode-tar-fsVendor fix publishedDebian records a fixed source-package version for this release.3.0.9+~cs2.0.4-1+deb13u1Debian Security Tracker ↗Source updated 6 Oct 2026
Debian bookwormbookworm · sourcenode-tar-fsVendor fix publishedDebian records a fixed source-package version for this release.2.1.3-0+deb12u2Debian Security Tracker ↗Source updated 6 Oct 2026
Debian forkyforky · sourcenode-tar-fsVendor fix publishedDebian records a fixed source-package version for this release.3.0.9+~cs2.0.4-2Debian Security Tracker ↗Source updated 6 Oct 2026
Debian sidsid · sourcenode-tar-fsVendor fix publishedDebian records a fixed source-package version for this release.3.0.9+~cs2.0.4-2Debian Security Tracker ↗Source updated 6 Oct 2026
Ubuntu 24.04 LTSnoble · esm-appsnode-tar-fsVendor fix publishedCanonical reports that a fixed source package version has been published. Repository candidate availability is not checked by BlackTree.2.1.1-6ubuntu0.24.04.1~esm1Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Open-source package ranges6 source-attributed ranges

These OSV and GitHub advisory ranges apply only to the named package and ecosystem. A listed fixed version is not a universal product patch or proof that an update is installed.

Ecosystem and packageAffected rangeFirst fixed versionEvidence
npmtar-fs>= 3.0.0, < 3.1.13.1.1GitHub advisory ↗upstream repository advisory · 3 Nov 2025
npmtar-fs>= 2.0.0, < 2.1.42.1.4GitHub advisory ↗upstream repository advisory · 3 Nov 2025
npmtar-fs< 1.16.61.16.6GitHub advisory ↗upstream repository advisory · 3 Nov 2025
npmtar-fsSEMVER: introduced 3.0.0; fixed 3.1.13.1.1OSV record ↗aggregator derived · 10 Sep 2026
npmtar-fsSEMVER: introduced 2.0.0; fixed 2.1.42.1.4OSV record ↗aggregator derived · 10 Sep 2026
npmtar-fsSEMVER: introduced 0; fixed 1.16.61.16.6OSV record ↗aggregator derived · 10 Sep 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-2025-59343 · CSAF 2.0 · revision 3 · finalRed Hat Product Securitytar-fs: tar-fs symlink validation bypass
12 known affected

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

  • cryostat/cryostat-openshift-console-plugin-rhel9.src as a component of Cryostat 4
  • workload-availability/node-remediation-console-rhel9 as a component of Node HealthCheck Operator
  • openshift-pipelines/pipelines-hub-api-rhel8 as a component of OpenShift Pipelines
  • openshift-pipelines/pipelines-hub-db-migration-rhel8 as a component of OpenShift Pipelines
  • openshift-pipelines/pipelines-hub-ui-rhel8 as a component of OpenShift Pipelines
  • pybind.src as a component of Red Hat Ceph Storage 6
  • pybind.src as a component of Red Hat Ceph Storage 8
  • io.syndesis-syndesis-parent as a component of Red Hat Fuse 7
  • openshift4/ose-console-rhel9 as a component of Red Hat OpenShift Container Platform 4
  • devspaces-tech-preview/idea-rhel9 as a component of Red Hat OpenShift Dev Spaces
  • devspaces/code-rhel9 as a component of Red Hat OpenShift Dev Spaces
  • devspaces/pluginregistry-rhel9 as a component of Red Hat OpenShift Dev Spaces
Summary
A symlink validation bypass flaw has been discovered in the npm tar-fs library. Affected versions are vulnerable to a symlink validation bypass if the destination directory is predictable with a specific tarball.
Remediation
Red Hat Ansible Automation Platform
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-2025-31022

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 actionWithin 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
01

What, why and how

tar-fs provides filesystem bindings for tar-stream. Versions prior to 3.1.1, 2.1.3, and 1.16.5 are vulnerable to symlink validation bypass if the destination directory is predictable with a specific tarball. This issue has been patched in version 3.1.1, 2.1.4, and 1.16.6. A workaround involves using the ignore option on non files/directories.

What

tar-fs provides filesystem bindings for tar-stream. Versions prior to 3.1.1, 2.1.3, and 1.16.5 are vulnerable to symlink validation bypass if the destination directory is predictable with a specific tarball. This issue has been patched in version 3.1.1, 2.1.4, and 1.16.6. A workaround involves using the ignore option on non files/directories.

Why

Attacker-controlled path data is not constrained to the intended directory before the application accesses a file.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

tar-fs provides filesystem bindings for tar-stream. Versions prior to 3.1.1, 2.1.3, and 1.16.5 are vulnerable to symlink validation bypass if the destination directory is predictable with a specific tarball. This issue has been patched in version 3.1.1, 2.1.4, and 1.16.6. A workaround involves using the ignore option on non files/directories.

Why

Attacker-controlled path data is not constrained to the intended directory before the application accesses a file.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. 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
a network path → Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
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-22 ↗

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'). The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/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.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.ATNoneAttack requirements: No additional deployment or execution condition is required.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.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
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkUnauthenticatedCWE-22
A

Official authority intelligence

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

BSI · German · WID-SEC-2026-0438Atlassian Bamboo und Confluence (Data Center und Server): Mehrere Schwachstellen

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Atlassian Bamboo und Atlassian Confluence ausnutzen, um einen Denial of Service Angriff durchzuführen, Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren, vertrauliche Informationen offenzulegen und Cross-Site-Scripting-Angriffe durchzuführen.

Official advisory ↗
BSI · German · WID-SEC-2025-2762HCL BigFix: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen

Ein entfernter, anonymer Angreifer kann eine Schwachstelle in HCL BigFix ausnutzen, um Sicherheitsvorkehrungen zu umgehen.

Official advisory ↗
BSI · German · WID-SEC-2025-2432Red Hat Ansible Automation Platform: Mehrere Schwachstellen

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Red Hat Ansible Automation Platform ausnutzen, um Dateien zu manipulieren, offenzulegen oder Privilegien zu eskalieren.

Official advisory ↗
BSI · German · WID-SEC-2025-2313IBM App Connect Enterprise: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen

Ein entfernter, anonymer Angreifer kann eine Schwachstelle in IBM App Connect Enterprise ausnutzen, um Sicherheitsvorkehrungen zu umgehen.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20251001Security Bulletin 01 Oct 2025

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 01 Oct 2025, published on 1 October 2025. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0958Multiples vulnérabilités dans les produits IBM

ord?id=CVE-2025-21502 Référence CVE CVE-2025-22228 https://www.cve.org/CVERecord?id=CVE-2025-22228 Référence CVE CVE-2025-27789 https://www.cve.org/CVERecord?id=CVE-2025-27789 Référence CVE CVE-2025-47935 https://www.cve.org/CVERecord?id=CVE-2025-47935 Référence CVE CVE-2025-47944 https://www.cve.org/CVERecord?id=CVE-2025-47944 Référence CVE CVE-2025-48387 https://www.cve.org/CVERecord?id=CVE-2025-48387 Référence CVE CVE-2025-48997 https://www.cve.org/CVERecord?id=CVE-2025-48997 Référence CVE CVE-2025-56200 https://www.cve.org/CVERecord?id=CVE-2025-56200 Référence CVE CVE-2025-5889 https://www.cve.org/CVERecord?id=CVE-2025-5889 Référence CVE CVE-2025-59343 https://www.cve.org/CVERecord?id=CVE-2025-59343 Référence CVE CVE-2025-59375 https://www.cve.org/CVERecord?id=CVE-2025-59375 Référence CVE CVE-2025-62718 https://www.cve.org/CVERecord?id=CVE-2025-62718 Référence CVE CVE-2025-64718 https://www.cve.org/CVERecord?id=CVE-2025-64718 Référence CVE CVE-2025-64756 https://www.cve.org/CVERecord?id=CVE-2025-64756 Référence CVE CVE-2025-66168 https://www.cve.org/CVERecord?id=CVE-2025-66168 Référence CVE CVE-2025-66199 https://www.cve.org/CVERecord?id=CVE-2025-66199 Référence CVE CVE-2025-66566 https://www.cve.org/CVERecord?id=CVE-2025-66566 Référence CVE CVE-2025-68160 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0249Multiples vulnérabilités dans les produits IBM

ord?id=CVE-2025-58058 Référence CVE CVE-2025-58183 https://www.cve.org/CVERecord?id=CVE-2025-58183 Référence CVE CVE-2025-58185 https://www.cve.org/CVERecord?id=CVE-2025-58185 Référence CVE CVE-2025-58186 https://www.cve.org/CVERecord?id=CVE-2025-58186 Référence CVE CVE-2025-58187 https://www.cve.org/CVERecord?id=CVE-2025-58187 Référence CVE CVE-2025-58189 https://www.cve.org/CVERecord?id=CVE-2025-58189 Référence CVE CVE-2025-58190 https://www.cve.org/CVERecord?id=CVE-2025-58190 Référence CVE CVE-2025-58457 https://www.cve.org/CVERecord?id=CVE-2025-58457 Référence CVE CVE-2025-5889 https://www.cve.org/CVERecord?id=CVE-2025-5889 Référence CVE CVE-2025-59343 https://www.cve.org/CVERecord?id=CVE-2025-59343 Référence CVE CVE-2025-61724 https://www.cve.org/CVERecord?id=CVE-2025-61724 Référence CVE CVE-2025-61727 https://www.cve.org/CVERecord?id=CVE-2025-61727 Référence CVE CVE-2025-61729 https://www.cve.org/CVERecord?id=CVE-2025-61729 Référence CVE CVE-2025-64329 https://www.cve.org/CVERecord?id=CVE-2025-64329 Référence CVE CVE-2025-64756 https://www.cve.org/CVERecord?id=CVE-2025-64756 Référence CVE CVE-2025-66418 https://www.cve.org/CVERecord?id=CVE-2025-66418 Référence CVE CVE-2025-66471 https://www.cve.org/CVERecord?id=CVE-2025-66471 Référence CVE CVE-2025-66506 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0182Multiples vulnérabilités dans Atlassian Confluence

De multiples vulnérabilités ont été découvertes dans Atlassian Confluence. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, un déni de service à distance et un contournement de la politique de sécurité.

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-1072Multiples vulnérabilités dans les produits IBM

ord?id=CVE-2025-48387 Référence CVE CVE-2025-48795 https://www.cve.org/CVERecord?id=CVE-2025-48795 Référence CVE CVE-2025-48913 https://www.cve.org/CVERecord?id=CVE-2025-48913 Référence CVE CVE-2025-48997 https://www.cve.org/CVERecord?id=CVE-2025-48997 Référence CVE CVE-2025-50106 https://www.cve.org/CVERecord?id=CVE-2025-50106 Référence CVE CVE-2025-56200 https://www.cve.org/CVERecord?id=CVE-2025-56200 Référence CVE CVE-2025-57350 https://www.cve.org/CVERecord?id=CVE-2025-57350 Référence CVE CVE-2025-58754 https://www.cve.org/CVERecord?id=CVE-2025-58754 Référence CVE CVE-2025-5889 https://www.cve.org/CVERecord?id=CVE-2025-5889 Référence CVE CVE-2025-59343 https://www.cve.org/CVERecord?id=CVE-2025-59343 Référence CVE CVE-2025-7338 https://www.cve.org/CVERecord?id=CVE-2025-7338 Référence CVE CVE-2025-7339 https://www.cve.org/CVERecord?id=CVE-2025-7339 Référence CVE CVE-2025-7783 https://www.cve.org/CVERecord?id=CVE-2025-7783 Gestion détaillée du document le 05 décembre 2025 Version initiale Alertes Avis Bulletins d’actualités Mentions légales Conditions générales À propos Contact cyber.gouv.fr service-public.fr legifrance.gouv.fr info.gouv.fr france.fr info.gouv.fr/risques Premier Ministre / Secrétariat Général de la Défense et de la Sécurité Nationale / Agence nationale de la sécurité des syst

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-0896Multiples vulnérabilités dans les produits IBM

ord?id=CVE-2025-49826 Référence CVE CVE-2025-50059 https://www.cve.org/CVERecord?id=CVE-2025-50059 Référence CVE CVE-2025-50106 https://www.cve.org/CVERecord?id=CVE-2025-50106 Référence CVE CVE-2025-50181 https://www.cve.org/CVERecord?id=CVE-2025-50181 Référence CVE CVE-2025-50182 https://www.cve.org/CVERecord?id=CVE-2025-50182 Référence CVE CVE-2025-53864 https://www.cve.org/CVERecord?id=CVE-2025-53864 Référence CVE CVE-2025-55668 https://www.cve.org/CVERecord?id=CVE-2025-55668 Référence CVE CVE-2025-58754 https://www.cve.org/CVERecord?id=CVE-2025-58754 Référence CVE CVE-2025-5889 https://www.cve.org/CVERecord?id=CVE-2025-5889 Référence CVE CVE-2025-59343 https://www.cve.org/CVERecord?id=CVE-2025-59343 Référence CVE CVE-2025-7338 https://www.cve.org/CVERecord?id=CVE-2025-7338 Référence CVE CVE-2025-7783 https://www.cve.org/CVERecord?id=CVE-2025-7783 Gestion détaillée du document le 17 octobre 2025 Version initiale Alertes Avis Bulletins d’actualités Mentions légales Conditions générales À propos Contact cyber.gouv.fr service-public.fr legifrance.gouv.fr info.gouv.fr france.fr info.gouv.fr/risques Premier Ministre / Secrétariat Général de la Défense et de la Sécurité Nationale / Agence nationale de la sécurité des systèmes d'information

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.
Patch available
Affected
Fixed
Action
Red Hat Ansible Automation Platform
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
Official vendor articles1 stored document

Linked articles are downloaded and versioned as source evidence. A CVE mention or approved update relationship does not, by itself, verify a fix for every product branch.

04

Evidence and provenance

Published 24 Sept 2025 · Last source change 3 Nov 2025, 18:13 UTC · CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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-2025-31022
Product sourceVendor CSAF · Red Hat Product Security
Remediation sourceVendor CSAF · Red Hat Product Security
CWE sourceCNA
NVD statusNVD not scheduled

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
    >= 3.0.0, < 3.1.1; >= 2.0.0, < 2.1.3; < 1.16.5 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    >= 3.0.0, < 3.1.1; >= 2.0.0, < 2.1.3; < 1.16.5 · Fixed: Red Hat Ansible Automation Platform
    Red Hat Product Security ↗
  2. Remediation statusRemediation status changed from Awaiting fix to Patch available.
    Before
    Awaiting fix
    After
    Patch available
    Red Hat Product Security ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release recorded from official guidance
ENISA EUVD · EUVD-2025-31022↗Red Hat Product Security security advisory↗CVE authority or vendor reference · GitHub GHSA-VJ76-C3G6-QR5V↗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-2025-59343 · cve.blacktree.nl