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01 Record

CVE-2026-86035

Weblate: Mercurial argument injection via repository filenames allows authenticated command execution

HighPUBLISHEDCNA: GitHub_M
CNA base score8.5 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

02 Description

Weblate: Mercurial argument injection via repository filenames allows authenticated command execution

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.46% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 40.0% of scored records. A rank, not a probability.
NVD base score
8.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
NVD analysis status
Deferred. NVD last modified this record on 2026-10-02.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-09-29 14:58Z29 DAYS AGO
Last updated
2026-10-02 12:09Z27 DAYS AGO
Reserved
2026-09-04
Assigning CNA
GitHub_M
Record state
PUBLISHED
Severity
High (CVSS 8.5)
CNA CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Weaknesses
  • CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')Base
  • CWE-88Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')Base
Data version
5.2
Document digest
04fd34349437a395c7f6bd6dd3ccf1558897f4094db51174978c4a9ba070d2e6

05 Affected products

VendorProductVersionsPlatforms
WeblateOrgweblate>= 4.11.1, < 2026.8—

06 References