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Fencer Vulns
low 3.2

CVE-2025-54956 json

Arbitrary Code Execution (ACE) Vulnerability

published 2025-07-31 15 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-23481 , RSEC-2025-0

cvss
3.2
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 6%
public exploits
0
none known

Summary

The gh package before 1.5.0 for R delivers an HTTP response in a data structure that includes the Authorization header from the corresponding HTTP request.

Patch / fix

  • cran gh 1.5.0
  • r-lib gh 1.5.0
  • r-cran-gh Debian 12 1.4.0-1+deb12u1
  • r-cran-gh Debian 13 1.4.1-1+deb13u1
  • r-cran-gh Debian 14 1.5.0-1

debian advisories DEBIAN-CVE-2025-54956

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
15 mo ago

Exploit prediction

0.17% chance of exploitation in the next 30 days, higher than 6% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 3.2 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N

Affected packages

ecosystem package affected fixed in
cran gh
>=1.1.0, <1.5.0
1.5.0

Affected products

  • r-lib gh

Classification

Weakness
  • CWE-669 Incorrect Resource Transfer Between Spheres

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.