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CVE Record

CVE-2026-27941: OpenLIT Vulnerable to Remote Code Execution and Secret Exposure via Misuse of `pull_request_target` in GitHub Actions Workflows

OpenLIT is an open source platform for AI engineering. Prior to version 1.37.1, several GitHub Actions workflows in OpenLIT's GitHub repository use the `pull_request_target` event while checking out and executing untrusted code from forked pull requests. These workflows run with the security context of the base repository, including a write-privileged `GITHUB_TOKEN` and numerous sensitive secrets (API keys, database/vector store tokens, and a Google Cloud service account key). Version 1.37.1 contains a fix.

CriticalCVSS 10Not KEV-listedUpdated
Glexia's TakeAutomated analysiscritical

Security readout for executives and security teams

Plain-English summary

CVE-2026-27941 affects OpenLIT before 1.37.1. Certain GitHub Actions workflows could run untrusted pull request code with the main repository’s privileges and secrets. This creates a serious risk of source repository compromise and secret theft, especially for maintainers or forks using the same workflows.

Executive priority

Treat as urgent for teams maintaining OpenLIT repositories or using its workflows. The main business risk is compromise of development infrastructure and theft of cloud, database, or API secrets. Prioritize upgrade, workflow review, and credential rotation.

Technical view

The issue is misuse of GitHub Actions `pull_request_target` with checkout and execution of untrusted fork pull request code. Workflows ran in the base repository security context with a write-privileged `GITHUB_TOKEN` and multiple secrets. The advisory maps this to CWE-829 and rates it CVSS 10.0. Fixed in OpenLIT 1.37.1.

Likely exposure

Exposure is most relevant to the OpenLIT repository, maintainers, and organizations using affected OpenLIT versions or copied workflows before 1.37.1. Runtime deployments of OpenLIT are not clearly described as directly exploitable by the provided sources.

Exploitation context

A low-privileged attacker could abuse fork-based pull request automation if the vulnerable workflows are present. The provided sources do not state known active exploitation, and the CVE is not marked KEV in the supplied data.

Researcher notes

The vulnerability is supply-chain and CI/CD focused, not a typical application endpoint flaw. Evidence supports critical impact through secret exposure and repository write access. Avoid assuming downstream application RCE unless the affected GitHub Actions workflow context exists.

Mitigation direction

  • Upgrade OpenLIT to version 1.37.1 or later.
  • Review GitHub Actions workflows using `pull_request_target`.
  • Avoid executing untrusted fork pull request code with repository secrets available.
  • Rotate repository secrets that may have been exposed.
  • Review GitHub token permissions for least privilege.
  • Check the vendor advisory and fix commit for implementation details.

Validation and detection

  • Confirm OpenLIT version is 1.37.1 or later.
  • Inspect workflows for unsafe `pull_request_target` usage.
  • Verify fork pull request workflows cannot access sensitive secrets.
  • Review Actions history for suspicious pull request workflow runs.
  • Confirm exposed API keys and cloud credentials were rotated.
  • Validate repository token permissions are restricted.
Prepared
Confidence
high
Sources
4

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-829: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
description · low confidence lookup

Credential and access behavior lookup

The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
description · low confidence lookup

Database behavior lookup

The CVE wording references database injection or access, so collection and exfiltration review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-27941 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Critical
CVSS
10 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
10CVSS 3.1CriticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H3.16Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

10Critical
CVSS 3.1 vector shape for CVE-2026-27941Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
openlitopenlit< 1.37.1Listed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-829 · source CWE mapping

Inclusion of Functionality from Untrusted Control Sphere

Inclusion of Functionality from Untrusted Control Sphere represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.