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Full vulnerability report · 2026
CVE-2026-88922High confidence

Go-getter vulnerable to a privilege escalation issue in its archive decompression handling

HashiCorp · Shared library

6.7MediumCVSS 3.1
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 1 structured product or package state 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 20 Sep 2026

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • Exploitation requires an existing local or physical foothold with privileges.
  • EPSS is 0.11% 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 HashiCorp Shared library 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 1 structured product or package state remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Distribution package intelligence

Release-specific package status

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

1 package state
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 1 affected package state 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
Debian bookwormbookworm · sourcegolang-github-hashicorp-go-getterAffected, no fix publishedDebian currently tracks this release as open.Not published in this feedDebian Security Tracker ↗Source updated 7 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.

2 current
CVE-2026-88922 · CSAF 2.0 · revision 3 · interimSUSE Product Security TeamCVE-2026-88922
108 known affected

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

  • terraform as component of SUSE Linux Enterprise High Performance Computing 15 SP4
  • terraform-provider-aws as component of SUSE Linux Enterprise High Performance Computing 15 SP4
  • terraform-provider-azurerm as component of SUSE Linux Enterprise High Performance Computing 15 SP4
  • terraform-provider-external as component of SUSE Linux Enterprise High Performance Computing 15 SP4
  • terraform-provider-google as component of SUSE Linux Enterprise High Performance Computing 15 SP4
  • terraform-provider-kubernetes as component of SUSE Linux Enterprise High Performance Computing 15 SP4
  • terraform-provider-local as component of SUSE Linux Enterprise High Performance Computing 15 SP4
  • terraform-provider-random as component of SUSE Linux Enterprise High Performance Computing 15 SP4
  • terraform-provider-tls as component of SUSE Linux Enterprise High Performance Computing 15 SP4
  • terraform as component of SUSE Linux Enterprise High Performance Computing 15 SP5
  • terraform-provider-aws as component of SUSE Linux Enterprise High Performance Computing 15 SP5
  • terraform-provider-azurerm as component of SUSE Linux Enterprise High Performance Computing 15 SP5
Summary
The go-getter library up to versions 1.8.8 and 2.2.3 is vulnerable to a privilege escalation issue in its archive decompression handling that may allow a crafted archive to cause extracted files to be created with elevated permission bits. Where extraction is performed by a privileged user, this may allow a local actor to obtain the privileges of the extracting process. This vulnerability (CVE-2026-88922) is fixed in go-getter 1.8.9 and 2.2.4.
Remediation
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
CVE-2026-88922 · CSAF 2.0 · revision 3 · finalRed Hat Product Securitygithub.com/hashicorp/go-getter: Go-getter: Privilege escalation via crafted archive decompression
4 known affected

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

  • exploit-intelligence-tech-preview/agent-client-rhel9 as a component of Exploit Intelligence
  • exploit-intelligence/agent-client-rhel9 as a component of Exploit Intelligence
  • opentofu1.11.src as a component of Red Hat Hardened Images
  • rhtas/ec-rhel9 as a component of Red Hat Trusted Artifact Signer
Summary
A flaw was found in the go-getter library. This vulnerability allows a local attacker to escalate privileges by providing a specially crafted archive. When a privileged user extracts this archive, files can be created with elevated permission bits, enabling the attacker to gain the privileges of the extracting process.
Remediation
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/
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-2026-79245

No EUVD known-exploited evidence

The go-getter library up to versions 1.8.8 and 2.2.3 is vulnerable to a privilege escalation issue in its archive decompression handling that may allow a crafted archive to cause extracted files to be created with elevated permission bits. Where extraction is performed by a privileged user, this may allow a local actor to obtain the privileges of the extracting process. This vulnerability (CVE-2026-88922) is fixed in go-getter 1.8.9 and 2.2.4.

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
6.7 · CVSS 3.1
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 1 structured product or package state remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
01

What, why and how

The go-getter library up to versions 1.8.8 and 2.2.3 is vulnerable to a privilege escalation issue in its archive decompression handling that may allow a crafted archive to cause extracted files to be created with elevated permission bits. Where extraction is performed by a privileged user, this may allow a local actor to obtain the privileges of the extracting process. This vulnerability (CVE-2026-88922) is fixed in go-getter 1.8.9 and 2.2.4.

What

The go-getter library up to versions 1.8.8 and 2.2.3 is vulnerable to a privilege escalation issue in its archive decompression handling that may allow a crafted archive to cause extracted files to be created with elevated permission bits. Where extraction is performed by a privileged user, this may allow a local actor to obtain the privileges of the extracting process. This vulnerability (CVE-2026-88922) is fixed in go-getter 1.8.9 and 2.2.4.

Why

The product does not preserve permissions or incorrectly preserves permissions when copying, restoring, or sharing objects, which can cause them to have less restrictive permissions than intended.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may gain additional privileges.

What

The go-getter library up to versions 1.8.8 and 2.2.3 is vulnerable to a privilege escalation issue in its archive decompression handling that may allow a crafted archive to cause extracted files to be created with elevated permission bits. Where extraction is performed by a privileged user, this may allow a local actor to obtain the privileges of the extracting process. This vulnerability (CVE-2026-88922) is fixed in go-getter 1.8.9 and 2.2.4.

Why

The product does not preserve permissions or incorrectly preserves permissions when copying, restoring, or sharing objects, which can cause them to have less restrictive permissions than intended.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may gain additional privileges.

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 Preservation of Permissions → gain additional privileges
Attack surface
Local
Privileges required
Low: a basic authenticated account is required
User interaction
Required interaction required
Attack complexity
High: exploitation depends on specific conditions
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-281 ↗

CWE-281: Improper Preservation of Permissions. The product does not preserve permissions or incorrectly preserves permissions when copying, restoring, or sharing objects, which can cause them to have less restrictive permissions than intended.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACHighAttack complexity: Successful exploitation depends on specific conditions outside the attacker's direct control.PRLowPrivileges required: The attacker needs basic user-level privileges.UIRequiredUser interaction: Another user must perform an action for exploitation to succeed.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
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.
Privilege escalationCWE-281
A

Official authority intelligence

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

ENISA EUVD · EUVD-2026-79245Official EUVD mapping

The go-getter library up to versions 1.8.8 and 2.2.3 is vulnerable to a privilege escalation issue in its archive decompression handling that may allow a crafted archive to cause extracted files to be created with elevated permission bits. Where extraction is performed by a privileged user, this may allow a local actor to obtain the privileges of the extracting process. This vulnerability (CVE-2026-88922) is fixed in go-getter 1.8.9 and 2.2.4.

Official EUVD record ↗
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
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/
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
No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
04

Evidence and provenance

Published 15 Sept 2026 · Last source change 20 Sept 2026, 00:40 UTC · CWE-281 · Improper Preservation of Permissions

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 2026-09-16
European sourceENISA EUVD · EUVD-2026-79245
Product sourceVendor CSAF · SUSE Product Security Team
Remediation sourceVendor CSAF · SUSE Product Security Team
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
    Shared library: 1.0.1 < 2.2.4 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    Shared library: 1.0.1 < 2.2.4 · Fixed: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/
    Red Hat Product Security ↗
  2. Vendor guidanceAuthoritative vendor guidance changed from remediation: access.redhat.com/CVE-2026-88922 to remediation: access.redhat.com/CVE-2026-88922.
    Before
    remediation: access.redhat.com/CVE-2026-88922
    After
    remediation: access.redhat.com/CVE-2026-88922
    Red Hat Product Security ↗
  3. Remediation statusRemediation status changed from Awaiting fix to Patch available.
    Before
    Awaiting fix
    After
    Patch available
    Red Hat Product Security ↗
  4. Affected versionsThe structured affected or fixed version information changed.
    Before
    exploit-intelligence-tech-preview/agent-client-rhel9 as a component of Exploit Intelligence; exploit-intelligence/agent-client-rhel9 as a component of Exploit Intelligence; grype.src as a component of Red Hat Hardened Images; opentofu1.10.src as a component of Red Hat Hardened Images; opentofu1.11.src as a component of Red Hat Hardened Images; opentofu1.12.src as a component of Red Hat Hardened Images; syft.src as a component of Red Hat Hardened Images; trivy.src as a component of Red Hat Hardened Images; rhtas/ec-rhel9 as a component of Red Hat Trusted Artifact Signer
    After
    exploit-intelligence-tech-preview/agent-client-rhel9 as a component of Exploit Intelligence; exploit-intelligence/agent-client-rhel9 as a component of Exploit Intelligence; opentofu1.11.src as a component of Red Hat Hardened Images; rhtas/ec-rhel9 as a component of Red Hat Trusted Artifact Signer · Fixed: grype-0:0.118.0-0.2.hum1@aarch64 as a component of Red Hat Hardened Images; grype-0:0.118.0-0.2.hum1@src as a component of Red Hat Hardened Images; grype-0:0.118.0-0.2.hum1@x86_64 as a component of Red Hat Hardened Images; opentofu1.10-0:1.10.10-0.4.hum1@aarch64 as a component of Red Hat Hardened Images; opentofu1.10-0:1.10.10-0.4.hum1@src as a component of Red Hat Hardened Images; opentofu1.10-0:1.10.10-0.4.hum1@x86_64 as a component of Red Hat Hardened Images; opentofu1.12-0:1.12.6-0.2.hum1@aarch64 as a component of Red Hat Hardened Images; opentofu1.12-0:1.12.6-0.2.hum1@src as a component of Red Hat Hardened Images; opentofu1.12-0:1.12.6-0.2.hum1@x86_64 as a component of Red Hat Hardened Images; syft-0:1.51.1-0.2.hum1@aarch64 as a component of Red Hat Hardened Images; syft-0:1.51.1-0.2.hum1@src as a component of Red Hat Hardened Images; syft-0:1.51.1-0.2.hum1@x86_64 as a component of Red Hat Hardened Images; trivy-0:0.74.0-0.3.hum1@aarch64 as a component of Red Hat Hardened Images; trivy-0:0.74.0-0.3.hum1@src as a component of Red Hat Hardened Images; trivy-0:0.74.0-0.3.hum1@x86_64 as a component of Red Hat Hardened Images
    Red Hat Product Security ↗
  5. ENISA EUVD mappingEUVD-2026-79245 was added to the official ENISA EUVD mapping for this CVE.
    Before
    not recorded
    After
    {"euvdId":"EUVD-2026-79245"}
    ENISA EUVD ↗
  6. Catalogue recordCVE added to the BlackTree catalogue.
    CNA ↗
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-2026-79245↗Vendor CSAF · SUSE Product Security Team↗Red Hat Product Security security advisory↗CVE authority or vendor 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-2026-88922 · cve.blacktree.nl