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High, CVSS 8.8amended

Patchelf out-of-bounds read

CVE-2022-44940GHSA-5pcj-3m26-w633

What to do

Partial vendor fix. Follow the primary source's mitigation guidance and check back for a fix.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

  • PyPI patchelf

    Affected
    < 0.16.1.0
    Fixed in
    0.16.1.0

  • PyPI pypatchelf

    Affected
    every version
    Fixed in
    no fixed version recorded

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS 4.0
8.8 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N · score source
EPSS
  • CVE-2022-44940: 1.09% estimated exploitation activity in the next 30 days; percentile 65.47 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

Patchelf v0.9 was discovered to contain an out-of-bounds read via the function modifyRPath at src/patchelf.cc.

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 4 · amended ·

    Amended from ghsa record GHSA-5pcj-3m26-w633

  2. Revision 3 · amended ·

    Reviewed OSV alias/range/CVSS4 correction; package source scopes and original publication preserved. No customer finding resolved.

  3. Revision 2 · amended ·

    Amended from osv record PYSEC-2022-43151

  4. Revision 1 · created ·

    Published from osv record GHSA-5pcj-3m26-w633

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: CVE-2022-44940

Advisory: Patchelf out-of-bounds read
IDs: CVE-2022-44940, GHSA-5pcj-3m26-w633
Record: https://patchnext.com/advisories/cve-2022-44940 (revision 4, source checked 26 Oct 2026, 13:30 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 8.8)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Partial vendor fix; fixed versions by package: patchelf 0.16.1.0. A vendor fix does not mean a deployment is fixed.

## Affected components
- PyPI patchelf: affected < 0.16.1.0; fixed in 0.16.1.0
- PyPI pypatchelf: affected every version

## Suggested inspection (read-only)
- `python -m pip show patchelf`: prints the installed version. Run with the environment that serves production active.
- `python -m pip show pypatchelf`: prints the installed version. Run with the environment that serves production active.

## Supported action
No complete vendor fix is recorded. Follow the primary source's mitigation guidance and check this record again before closing anything.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on patchelf, pypatchelf.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GHSA-5pcj-3m26-w633 (OSV record GHSA-5pcj-3m26-w633 lists affected ranges: PyPI patchelf >=0 <0.16.1.0 (fixed))
- Verified: https://osv.dev/vulnerability/PYSEC-2022-43151 (OSV record PYSEC-2022-43151 lists affected ranges: PyPI pypatchelf >=0)
- Verified: https://github.com/advisories/GHSA-5pcj-3m26-w633 (GitHub-reviewed advisory GHSA-5pcj-3m26-w633 lists affected ranges: PyPI patchelf >=0 <0.16.1.0)

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