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CVE-2026-108976

Status: Awaiting AnalysisHigh (7.8)—
Severity7.8High · CVSS 3.1
Exploitation probability0.51 %higher than 42% of CVEs
Active exploitationNonot in the CISA catalog
Public exploitNot knownno public code found

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

Base score
7.8
Version
3.1
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days
0.51 %
Percentile among all scored CVEs
42
Score date
10/21/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

Acceso local (AV:L) sin interacción del usuario (UI:N) con privilegios del usuario (PR:L) permite escalada mediante inyección de comandos OS en nombres de archivo de Emacs/TRAMP, logrando ejecución de comandos arbitrarios y lectura de datos.

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

ATT&CK mitigations that cover these techniques

Execution PreventionThreat Intelligence ProgramRestrict Web-Based ContentPrivileged Account ManagementLimit Software InstallationBehavior Prevention on Endpoint

Affected technologies (2)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

GNU — EmacsAIGNU — TrampAI

CWEs

References

Show 3 references

Raw JSON (NVD)

Show
{
  "id": "CVE-2026-108976",
  "cveTags": [],
  "metrics": {
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-108976",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-10-15T16:18:38.501389Z"
        }
      }
    ],
    "cvssMetricV31": [
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        "type": "Secondary",
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        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "GNU",
          "product": "Emacs",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "31.2",
              "versionType": "custom"
            }
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  "published": "2026-10-11T21:16:43.580",
  "references": [
    {
      "url": "https://ftp.gnu.org/gnu/tramp/tramp-2.8.2.tar.gz",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.openwall.com/lists/oss-security/2026/08/21/1",
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    {
      "url": "https://www.openwall.com/lists/oss-security/2026/10/11/1",
      "source": "cve@mitre.org"
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  "vulnStatus": "Awaiting Analysis",
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    {
      "lang": "en",
      "value": "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."
    }
  ],
  "lastModified": "2026-10-16T17:25:57.940",
  "sourceIdentifier": "cve@mitre.org"
}