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Vulnerabilities

Vulnerability · CVE-2024-39331

In Emacs before 29.4, org-link-expand-abbrev in lisp/ol.el expands a %(...) link abbrev even when it specifies an unsafe function, such as shell-command-to-string.

Published Jun 23, 2024 · catalog updated Nov 3, 2026 · In Emacs before 29.4,

Last checked Nov 6, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2024-39331. EPSS is 1.32%. Act only if a listed version of In Emacs before 29.4, is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (In Emacs before 29.4,).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Critical9.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
1.32%
Remediation
Version ranges on file
Affected products
cpe gnu/emacs

In Emacs before 29.4, org-link-expand-abbrev in lisp/ol.el expands a %(...) link abbrev even when it specifies an unsafe function, such as shell-command-to-string. This affects Org Mode before 9.7.5.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe gnu/emacs< 29.4

How to fix CVE-2024-39331

  • Upgrade

    CVE-2024-39331 lists a fix boundary at 29.4. Compare the installed build with that boundary before you change production.

  • Version check

    Affected < 29.4

  • Advisory

    Open the cve_org record and follow its fix.

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2024-39331. EPSS is 1.32%. Act only if a listed version of In Emacs before 29.4, is installed.

Which versions are affected?

Compare what you have installed with < 29.4. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-94: Code Injection. EPSS 1.32%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jun 23, 2024 · NIST NVD

    Detected

    In Emacs before 29.4, org-link-expand-abbrev in lisp/ol.el expands a %(...) link abbrev even when it specifies an unsafe function, such as shell-command-to-string. This affects Org Mode before 9.7.5.

  2. Nov 3, 2026 · NIST NVD

    Updated

    In Emacs before 29.4, org-link-expand-abbrev in lisp/ol.el expands a %(...) link abbrev even when it specifies an unsafe function, such as shell-command-to-string. This affects Org Mode before 9.7.5.

Sources

  • CVE.orgVulnerability recordCVE-2024-39331

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2024-39331

    In Emacs before 29.4, org-link-expand-abbrev in lisp/ol.el expands a %(...) link abbrev even when it specifies an unsafe function, such as shell-command-to-string. This affects Org Mode before 9.7.5.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Nov 6, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgNov 4, 2026
  • NIST NVDNov 4, 2026