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CVE-2025-32435

13
FAUCET Score

CVE-2025-32435 describes a low-severity vulnerability in Hydra, a Continuous Integration service for Nix-based projects. Untrusted Nix code, when evaluated, could potentially expose secrets accessible to the hydra user/group, though signing keys are unaffected. The CVSS score is 2.6 (LOW), indicating a network attack vector with high attack complexity, requiring user interaction and low privileges to achieve limited confidentiality impact. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 2025-04-11CPE matchmatch criteria
cpe:2.3:a:nixos:hydra:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

2.6LOW

CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
1.2
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.29%
Probability of exploitation in next 30 days
EPSS Percentile
21.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0029 is in the 62nd percentile among its peer group of 56 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / nix-community/nix-eval-jobs/releases/tag/v2.28.1
Release Notes
github.com / NixOS/hydra/commit/8d750265135b7e203520036a742afdf301b4013f
Patch
github.com / NixOS/hydra/security/advisories/GHSA-j7w7-965w-vjxw
Vendor Advisory
github.com / NixOS/nixpkgs/pull/397919
Issue Tracking