NixOS Hydra prior 2.28.1 eval injection

CVSS Meta Temp Score
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CTI Interest Score
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2.8$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in NixOS Hydra. Impacted is an unknown function. Executing a manipulation can lead to eval injection. This vulnerability is handled as CVE-2025-32435. The attack can be executed remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in NixOS Hydra. It has been declared as problematic. This vulnerability affects some unknown functionality. The manipulation with an unknown input leads to a eval injection vulnerability. The CWE definition for the vulnerability is CWE-95. The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes code syntax before using the input in a dynamic evaluation call (e.g. "eval"). As an impact it is known to affect confidentiality. CVE summarizes:

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.

The advisory is shared for download at github.com. This vulnerability was named CVE-2025-32435 since 04/08/2025. The exploitation appears to be difficult. The attack can be initiated remotely. There are neither technical details nor an exploit publicly available.

Upgrading to version 2.28.1 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 8d750265135b7e203520036a742afdf301b4013f is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 2.9
VulDB Meta Temp Score: 2.8

VulDB Base Score: 3.1
VulDB Temp Score: 3.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 2.6
CNA Vector (GitHub_M): 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Eval injection
CWE: CWE-95 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Hydra 2.28.1
Patch: 8d750265135b7e203520036a742afdf301b4013f

Timelineinfo

04/08/2025 🔍
04/16/2025 +8 days 🔍
04/16/2025 +0 days 🔍
04/16/2025 +0 days 🔍

Sourcesinfo

Product: github.com

Advisory: GHSA-j7w7-965w-vjxw
Status: Confirmed

CVE: CVE-2025-32435 (🔍)
GCVE (CVE): GCVE-0-2025-32435
GCVE (VulDB): GCVE-100-304936

Entryinfo

Created: 04/16/2025 02:34
Changes: 04/16/2025 02:34 (65)
Complete: 🔍
Cache ID: 216::103

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