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Fencer Vulns
critical 9.3

CVE-2025-31484 json

conda-forge infrastructure uses a bad token for Azure's cf-staging access

published 2025-04-02 19 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-14756

cvss
9.3
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 36%
public exploits
0
none known

Summary

conda-forge infrastructure holds common configurations and settings for key pieces of the conda-forge infrastructure. Between 2025-02-10 and 2025-04-01, conda-forge infrastructure used the wrong token for Azure's cf-staging access. This bug meant that any feedstock maintainer could upload a package to the conda-forge channel, bypassing our feedstock-token + upload process. The security logs on anaconda.org were check for any packages that were not copied from the cf-staging to the conda-forge channel and none were found.

Patch / fix

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
19 mo ago

Exploit prediction

0.41% chance of exploitation in the next 30 days, higher than 36% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 9.3 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CNA 4.0 9.3 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

  • conda-forge infrastructure

Classification

Weakness

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.