CVE-2026-108976GNU 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.
Updated under an hour ago ()
Does this affect you?
It affects GNU Emacs. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 0.51%, higher than 42% of scored CVEs.
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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
- 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-184
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.51% (percentile 42)
- Assigned by
- mitre
- NVD analysis
- Awaiting Analysis
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 11, 2026
Affected products
GNU Emacs gnu:emacs (from the name) | before 31.2 | CNA record |
References
- https://ftp.gnu.org/gnu/tramp/tramp-2.8.2.tar.gzproduct
- https://www.openwall.com/lists/oss-security/2026/10/11/1patch
- https://www.openwall.com/lists/oss-security/2026/08/21/1related
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.