HomeCVE Intelligence › CVE-2026-45539
CVSS 7.4 HIGH Vulnerability

CVE-2026-45539: Microsoft APM: Symlinks under `.apm/prompts/` and `.apm/agents/` are dereferenced during…

Summary Two primitive integrators in apm-cli enumerate package files with bare Path.glob() / Path.rglob() calls and read each match with Path.read_text(), transparently following symbolic links. A symlink committed insi…

7.4CVSS Score
HIGHSeverity
NOCISA KEV
VulnerabilityImpact Type

📋 Vulnerability Details

CVE IDCVE-2026-45539
Vendorpip
Affected Productapm
Vulnerability TypeVulnerability
CVSS Score7.4 (HIGH)
Actively Exploited❌ No known exploitation
Patch StatusSee Vendor Advisory →
Reported ByCYBERDUDEBIVASH SENTINEL APEX Intelligence (via github_advisories)

🔬 Technical Analysis

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Summary Two primitive integrators in apm-cli enumerate package files with bare Path.glob() / Path.rglob() calls and read each match with Path.read_text(), transparently following symbolic links. A symlink committed inside a remote APM dependency under .apm/prompts/ .prompt.md or .apm/agents/ .agent.md is preserved verbatim into apm_modules/ on clone and then dereferenced during integration, with the resolved content written as a regular file into the project's deploy directories. The package content_hash, the pre-deploy SecurityGate scan, and apm audit do not flag this. The deploy roots are not added to the auto-generated .gitignore, so the resulting files are staged by git add by default. This was reproduced via the standard owner/repo#tag install flow against

📚 Advisory References

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