How severe is CVE-2025-32435?

CVE-2025-32435 has a CVSS 3.x base score of 2.6, rated low severity. It is exploitable over network with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2025-32435 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-32435?

CVE-2025-32435 affects Nixos Hydra. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-32435?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-32435 have an EU (EUVD) identifier?

Yes. CVE-2025-32435 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-11469.

When was CVE-2025-32435 published?

CVE-2025-32435 was published on 2025-04-15 and last updated on 2026-06-17.

CVE-2025-32435

CVE-2025-32435 is a low-severity vulnerability in Nixos Hydra with a CVSS 3.x base score of 2.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-95.

Key facts

Severity: Low (CVSS 3.x base score 2.6)
EPSS exploit prediction: 0% (19th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-11469
Weakness: CWE-95
Affected product: Nixos Hydra
Published: 2025-04-15
Last modified: 2026-06-17

Description

Hydra is a Continuous Integration service for Nix based projects. Evaluation of untrusted non-flake nix code could potentially access secrets that are accessible by the hydra user/group. This should not affect the signing keys, that are owned by the hydra-queue-runner and hydra-www users respectively.

Frequently asked questions

What is CVE-2025-32435?: Hydra is a Continuous Integration service for Nix based projects. Evaluation of untrusted non-flake nix code could potentially access secrets that are accessible by the hydra user/group. This should not affect the signing keys, that are owned by the hydra-queue-runner and hydra-www users respectively.
How severe is CVE-2025-32435?: CVE-2025-32435 has a CVSS 3.x base score of 2.6, rated low severity. It is exploitable over network with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2025-32435 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-32435?: CVE-2025-32435 affects Nixos Hydra. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-32435?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-32435 have an EU (EUVD) identifier?: Yes. CVE-2025-32435 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-11469.
When was CVE-2025-32435 published?: CVE-2025-32435 was published on 2025-04-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:nixos:hydra:*:*:*:*:*:*:*:*

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