CVE-2024-39331· NVD / CVE Program· CNA mitre

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 s

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.

CriticalCVSS 9.8 · v3.1—No exploit Fix available

pre-auth RCE

Published: Jun 23, 2024
Updated: Jun 17, 2026
EPSS: 1.3% · 70th percentile
CWE: CWE-94

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Action score

Monitor

Low priority for now.

CVSS: 39 / 40 · 9.8 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 1.3%

CISA SSVC decision

Exploitation: none
Automatable: yes
Technical impact: total

Vulnrichment: CISA's decision-tree inputs.

Noroxi analysis

No Noroxi analysis for this record yet

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Affected systems

Vendor	Product	CPE
gnu	emacs	cpe:2.3:a:gnu:emacs

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

gnu emacsbefore 29.4

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Ecosystem	Package	Affected range	Fix
AlmaLinux:8	emacs	before 1:26.1-12.el8_10	1:26.1-12.el8_10
AlmaLinux:8	emacs-common	before 1:26.1-12.el8_10	1:26.1-12.el8_10
AlmaLinux:8	emacs-filesystem	before 1:26.1-12.el8_10	1:26.1-12.el8_10
AlmaLinux:8	emacs-lucid	before 1:26.1-12.el8_10	1:26.1-12.el8_10
AlmaLinux:8	emacs-nox	before 1:26.1-12.el8_10	1:26.1-12.el8_10
AlmaLinux:8	emacs-terminal	before 1:26.1-12.el8_10	1:26.1-12.el8_10
AlmaLinux:9	emacs	before 1:27.2-10.el9_4	1:27.2-10.el9_4
AlmaLinux:9	emacs-common	before 1:27.2-10.el9_4	1:27.2-10.el9_4
AlmaLinux:9	emacs-filesystem	before 1:27.2-10.el9_4	1:27.2-10.el9_4
AlmaLinux:9	emacs-lucid	before 1:27.2-10.el9_4	1:27.2-10.el9_4
AlmaLinux:9	emacs-nox	before 1:27.2-10.el9_4	1:27.2-10.el9_4
Debian:10	emacs	before 1:26.1+1-3.2+deb10u6	1:26.1+1-3.2+deb10u6
Debian:10	org-mode	before 9.1.14+dfsg-3+deb10u3	9.1.14+dfsg-3+deb10u3
Debian:11	emacs	before 1:27.1+1-3.1+deb11u5	1:27.1+1-3.1+deb11u5
Debian:11	org-mode	before 9.4.0+dfsg-1+deb11u3	9.4.0+dfsg-1+deb11u3
Debian:12	emacs	before 1:28.2+1-15+deb12u3	1:28.2+1-15+deb12u3
Debian:12	org-mode	all versions	—
Debian:13	emacs	before 1:29.4+1-1	1:29.4+1-1
Debian:13	org-mode	before 9.7.5+dfsg-1	9.7.5+dfsg-1
openSUSE:Leap 16.0	syft	before 1.45.0-bp160.1.1	1.45.0-bp160.1.1
openSUSE:Tumbleweed	emacs	before 29.4-2.1	29.4-2.1
openSUSE:Tumbleweed	syft	before 1.42.1-1.1	1.42.1-1.1
Red Hat:enterprise_linux:8::appstream	emacs	before 1:26.1-12.el8_10	1:26.1-12.el8_10
Red Hat:enterprise_linux:8::appstream	emacs-common	before 1:26.1-12.el8_10	1:26.1-12.el8_10

+46

Same product

gnu: all records

Other highest-scoring records for the same primary product.

CVE-2007-6109Stack-based buffer overflow in emacs allows user-assisted attackers to cause a denial of service (application crash) and possibly have unspe
41Plan
CVE-2022-48337GNU Emacs through 28.2 allows attackers to execute commands via shell metacharacters in the name of a source-code file, because lib-src/etag
39Monitor
CVE-2012-0035Untrusted search path vulnerability in EDE in CEDET before 1.0.1, as used in GNU Emacs before 23.4 and other products, allows local users to
38Monitor
CVE-2017-14482GNU Emacs before 25.3 allows remote attackers to execute arbitrary code via email with crafted "Content-Type: text/enriched" data containing
36Monitor
CVE-2024-53920In elisp-mode.el in GNU Emacs before 30.1, a user who chooses to invoke elisp-completion-at-point (for code completion) on untrusted Emacs L
31Monitor
CVE-2024-30202In Emacs before 29.3, arbitrary Lisp code is evaluated as part of turning on Org mode.
31Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
almalinux:emacs	1:27.2-10.el9_4 · AlmaLinux:9	Package registry (OSV)
almalinux:emacs-common	1:27.2-10.el9_4 · AlmaLinux:9	Package registry (OSV)
almalinux:emacs-filesystem	1:27.2-10.el9_4 · AlmaLinux:9	Package registry (OSV)
almalinux:emacs-lucid	1:27.2-10.el9_4 · AlmaLinux:9	Package registry (OSV)
almalinux:emacs-nox	1:27.2-10.el9_4 · AlmaLinux:9	Package registry (OSV)
almalinux:emacs-terminal	1:26.1-12.el8_10 · AlmaLinux:8	Package registry (OSV)
debian:emacs	1:28.2+1-15+deb12u3 · Debian:12	Package registry (OSV)
debian:org-mode	9.7.5+dfsg-1 · Debian:13	Package registry (OSV)
opensuse:emacs	27.2-150400.3.17.1 · openSUSE:Leap 15.5	Package registry (OSV)
opensuse:syft	1.42.1-1.1 · openSUSE:Tumbleweed	Package registry (OSV)
red hat:emacs	1:26.1-7.el8_6.5 · Red Hat:rhel_aus:8.6::appstream	Package registry (OSV)
red hat:emacs-common	1:26.1-7.el8_6.5 · Red Hat:rhel_aus:8.6::appstream	Package registry (OSV)
red hat:emacs-common-debuginfo	1:26.1-7.el8_6.5 · Red Hat:rhel_aus:8.6::appstream	Package registry (OSV)
red hat:emacs-debuginfo	1:26.1-7.el8_6.5 · Red Hat:rhel_aus:8.6::appstream	Package registry (OSV)
red hat:emacs-debugsource	1:26.1-7.el8_6.5 · Red Hat:rhel_aus:8.6::appstream	Package registry (OSV)
red hat:emacs-filesystem	1:26.1-7.el8_6.5 · Red Hat:rhel_aus:8.6::baseos	Package registry (OSV)
red hat:emacs-lucid	1:26.1-7.el8_6.5 · Red Hat:rhel_aus:8.6::appstream	Package registry (OSV)
red hat:emacs-lucid-debuginfo	1:26.1-7.el8_6.5 · Red Hat:rhel_aus:8.6::appstream	Package registry (OSV)
red hat:emacs-nox	1:26.1-7.el8_6.5 · Red Hat:rhel_aus:8.6::appstream	Package registry (OSV)
red hat:emacs-nox-debuginfo	1:26.1-7.el8_6.5 · Red Hat:rhel_aus:8.6::appstream	Package registry (OSV)
red hat:emacs-terminal	1:26.1-7.el8_6.5 · Red Hat:rhel_aus:8.6::appstream	Package registry (OSV)
rocky linux:emacs	1:26.1-12.el8_10 · Rocky Linux:8	Package registry (OSV)
suse:emacs	24.3-25.20.1 · SUSE:Linux Enterprise Server 12 SP5	Package registry (OSV)
suse:emacs	27.2-150400.3.17.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP5	Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

git.savannah.gnu.orgpatch

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

CVE-2024-3020290 days apartIn Emacs before 29.3, arbitrary Lisp code is evaluated as part of turning on Org mode.
31Monitor
CVE-2024-53920157 days apartIn elisp-mode.el in GNU Emacs before 30.1, a user who chooses to invoke elisp-completion-at-point (for code completion) on untrusted Emacs L
31Monitor
CVE-2023-27986472 days apartemacsclient-mail.desktop in Emacs 28.1 through 28.2 is vulnerable to Emacs Lisp code injections through a crafted mailto: URI with unescaped
31Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
No account or password is required.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: high · data can be read
Integrity: high · data or configuration can be modified
Availability: high · the service can be disrupted

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

Weakness class (CWE)

CWE-94 · Improper Control of Generation of Code ('Code Injection')

CVSS vector

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

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

Change log

Fix✗ → ✓Sep 28, 2026, 10:47 PM UTC

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records

Noroxi analysis

No Noroxi analysis for this record yet

We use this product, ask for help

Data sources and verification

CNA: mitre

CVE.org (CNA)Aug 22, 2024, 3:55 AM UTC
CISA ADPAug 22, 2024, 3:55 AM UTC
NVDJun 17, 2026, 3:41 AM UTC
FIRST EPSSSep 29, 2026, 12:00 AM UTC
OSV / GHSASep 30, 2026, 3:23 AM UTC

Each line is when that source was last processed for this record.

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