CVE-2026-108976

Vulnerability in GNU Emacs

CVSS score

7.8

EPSS probability

—

Risk score

0.8

Published

19 h ago

Overview Public Exploits (0)Newsroom Vulnerability Timeline

Official patch verified

Etkilenen ürün ve sürüm için yayımlanan güvenlik güncellemesini uygulayın.

Impact on My Inventory

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Vulnerability description

CVE AI research

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DayBreach AI Explanation

Verified against sources

OS Command Injection Vulnerability in GNU Emacs and TRAMP

Sources read

Source agreement

Tam uyum

Evidence confidence

%55

Short explanation

GNU Emacs before 31.2 and TRAMP through 2.8.2 allow OS command injection via a filename due to an incomplete list of disallowed inputs in tramp-user-regexp [S0].

Why does it matter?

This vulnerability permits local users with low privileges to achieve high impact across confidentiality, integrity, and availability [S0].

What should be done?

Follow vendor advisories for updates [S0]
Review patch references provided by CNA [S0]
Upgrade GNU Emacs and TRAMP to secure versions [S0]

Chain of evidence and sources2 verified claims

GNU Emacs 31.2 öncesi sürümler ve TRAMP 2.8.2 dahil olmak üzere dosya adları üzerinden OS command injection zafiyetine karşı savunmasızdır [S0].

S0 · daybreach-canonical S1 · cvelist

Bu güvenlik açığı, CVE-2026-79992 için yapılan eksik düzeltme ve tramp-user-regexp listesindeki eksik girdiler yüzünden ortaya çıkmaktadır [S0].

S0 · daybreach-canonical S1 · cvelist

Show the technical text from the sources

GNU Emacs before 31.2 (and TRAMP through 2.8.2) allows OS command injection via a filename because tramp-user-regexp has an incomplete list of disallowed inputs. NOTE: this issue exists because of an incomplete fix for CVE-2026-79992.

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

CWE: CWE-184

Explanation produced with the local gemini-flash-lite-latest model. Numerical metrics and the KEV, patch and exploit statuses are not determined by AI.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-108976 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

ID	VENDOR	PRODUCT	ACTION
1	gnu	Emacs	View

Total affected vendors: 1|Products: 1

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCORE	VERSION	SEVERITY	VECTOR	SOURCE
7.8	CVSS V3_1	HIGH	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	CVE CNA
7.8	CVSS V31	HIGH	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	NVD

Patch and Remediation Guide

Solution & Remediation Advisory

Patch verified

2 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

cvelist

CNA çözüm referansı

Open source

reference

Yama veya çözüm referansı

Open source

Confirm the affected product and version against the source evidence above.

Restrict access to internet-facing services and apply network segmentation.

Apply the official update named in the evidence only to the matching product and version.

Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-108976 is associated with the following CWEs:

CWE-184: Common Weakness Enumeration Entry CWE-184

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-108976 weaknesses.

CAPEC-66: SQL Injection CAPEC-126: Path Traversal CAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureYerel erişim

PermissionsLow

UserGerekmiyor

Official Sources and Advisories

https://ftp.gnu.org/gnu/tramp/tramp-2.8.2.tar.gzvendor-advisory https://www.openwall.com/lists/oss-security/2026/10/11/1patch https://www.openwall.com/lists/oss-security/2026/08/21/1vendor-advisory

CVSS Vector Radar Chart

7.8 / 10

Vulnerability Scoring Details

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

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow privileges

User InteractionNone required

Confidentiality (Gizlilik)Low

Integrity (Bütünlük)None

Availability (Erişilebilirlik)High

Yama doğrulandı

2 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

Follow the vendor

gnu

Weakness Type (CWE & CAPEC)

CWE-184

Similar Vulnerabilities

9.8

CVE-2026-24061 Actively exploited

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curl -H "x-api-key: $DAYBREACH_API_KEY" \
  "https://api.enginteksut.com.tr/api/v1/intel/cves/CVE-2026-108976"