CVE-2024-39331

CRITICAL

Published Jun 23, 2024 Modified Apr 30, 2025 CWE-94

Description

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.

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CVSS v3.1 Score

9.8

CRITICAL

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

Weakness Type (CWE)

CWE-94 CWE-94

Affected Products

Vendor	Product	Versions
gnu	emacs	< 29.4

References

Advisories & Patches

https://git.savannah.gnu.org/cgit/emacs/org-mode.git/commit/?id=f4cc61636947b5c2f0afc67174dd369fe3277aa8 https://git.savannah.gnu.org/cgit/emacs/org-mode.git/commit/?id=f4cc61636947b5c2f0afc67174dd369fe3277aa8

Other References

https://git.savannah.gnu.org/cgit/emacs.git/tree/etc/NEWS?h=emacs-29 https://list.orgmode.org/87sex5gdqc.fsf%40localhost/ https://lists.debian.org/debian-lts-announce/2024/06/msg00023.html https://lists.debian.org/debian-lts-announce/2024/06/msg00024.html https://lists.gnu.org/archive/html/info-gnu-emacs/2024-06/msg00000.html https://news.ycombinator.com/item?id=40768225 https://www.openwall.com/lists/oss-security/2024/06/23/1 https://www.openwall.com/lists/oss-security/2024/06/23/2 https://git.savannah.gnu.org/cgit/emacs.git/tree/etc/NEWS?h=emacs-29 https://list.orgmode.org/87sex5gdqc.fsf%40localhost/

Frequently Asked Questions

What is 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. This affects Org Mode before 9.7.5. It has a CVSS v3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2024-39331? +

CVE-2024-39331 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

What products are affected by CVE-2024-39331? +

CVE-2024-39331 affects products from gnu, specifically: emacs. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-39331? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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