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Fencer Vulns
low 2.2

CVE-2026-12567 json

Symlink-following arbitrary write via github_workflows module

published 2026-06-17 4 mo ago modified 2026-10-26 14 d ago also GHSA-rvp7-w75q-9fv2 , PYSEC-2026-2394 , EUVD-2026-37816

cvss
2.2
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.1%
EPSS 0.1% chance of exploitation in 30 days, percentile 0%
public exploits
0
none known

Summary

The github_workflows module constructs local directory paths from user-controlled repository names without validating for symlinks. A local attacker sharing the scan directory can plant a symlink at the predictable output path, causing workflow data to be written to an attacker-chosen location.

Patch / fix

  • pypi bbot 2.8.5

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
4 mo ago

Exploit prediction

0.09% chance of exploitation in the next 30 days, higher than 0% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 2.2 CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N
OSV 3.1 2.2 CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N
GitHub 3.1 2.2 CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N

Affected packages

ecosystem package affected fixed in
pypi bbot
>=2.0.0, <2.8.5
2.8.5

Affected products

  • Black Lantern Security BBOT

Classification

Weakness
  • CWE-59 Improper Link Resolution Before File Access
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.