VulnerabilityPublished 4 Apr 2025Updated 23 Jan 2026

CVE-2025-31130: GitoxideLabs gitoxide · Use of Weak Hash

Affects GitoxideLabs gitoxideSource CVE Database V5

Not known to be exploited · CVSS 6.8 Medium : upgrade to 0.42.0 when convenient.

Data as of 26 Oct 2026, 12:55 UTC

CVSS 3.1 base score

6.8Medium

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.2% chance of exploitation in 30 days – higher than 17% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 0.42.0

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

Attack Vector: Network
Attack Complexity: High
Privileges Required: None
User Interaction: None
Scope: Changed
Confidentiality: None
Integrity: High
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: High: A successful attack depends on conditions beyond the attacker's control. That is, a successful attack cannot be accomplished at will, but requires the attacker to invest in some measurable amount of effort in preparation or execution against the vulnerable component before a successful attack can be expected. For example, a successful attack may require an attacker to: gather knowledge about the environment in which the vulnerable target/component exists; prepare the target environment to improve exploit reliability; or inject themselves into the logical network path between the target and the resource requested by the victim in order to read and/or modify network communications (e.g., a man in the middle attack).
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Changed: An exploited vulnerability can affect resources beyond the security scope managed by the security authority of the vulnerable component. In this case, the vulnerable component and the impacted component are different and managed by different security authorities.
Confidentiality: None: There is no loss of confidentiality within the impacted component.
Integrity: High: There is a total loss of integrity, or a complete loss of protection. For example, the attacker is able to modify any/all files protected by the impacted component. Alternatively, only some files can be modified, but malicious modification would present a direct, serious consequence to the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 4 Apr 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade github/GitoxideLabs/gitoxide to 0.42.0.

Affected software

Product	Affected	Fixed in
crates.iogithub/GitoxideLabs/gitoxide`pkg:cargo/github/GitoxideLabs/gitoxide`Other threats	Affected <0.42.0	Fixed in 0.42.0

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

European organizations should immediately upgrade gitoxide to version 0.42.0 or later to remediate this vulnerability. Beyond patching, organizations should implement additional integrity verification mechanisms such as signing Git objects or commits using GPG or other cryptographic signatures to detect tampering. Regular audits of repositories for unusual or suspicious commits can help identify potential exploitation. Integrating continuous integration/continuous deployment (CI/CD) pipelines with integrity checks and automated alerts for hash anomalies can further reduce risk. For critical projects, consider using alternative Git implementations that have robust collision resistance or have transitioned away from SHA-1. Educate developers and DevOps teams about the risks of hash collisions and encourage best practices in repository management. Finally, monitor security advisories for any emerging exploits targeting this vulnerability.

Description

gitoxide is an implementation of git written in Rust. Before 0.42.0, gitoxide uses SHA-1 hash implementations without any collision detection, leaving it vulnerable to hash collision attacks.gitoxide uses the sha1_smol or sha1 crate, both of which implement standard SHA-1 without any mitigations for collision attacks. This means that two distinct Git objects with colliding SHA-1 hashes would break the Git object model and integrity checks when used with gitoxide. This vulnerability is fixed in 0.42.0.

Impact

For European organizations, this vulnerability poses a significant risk to the integrity of source code repositories managed with gitoxide versions prior to 0.42.0. Compromised repository integrity can lead to undetected insertion of malicious code, backdoors, or tampering with software artifacts, potentially cascading into supply chain attacks. This is particularly critical for software development firms, technology companies, and any organization relying on Git for version control. The lack of confidentiality or availability impact means data leakage or service disruption is unlikely, but the integrity breach can undermine trust in software builds and deployments. Organizations in Europe with strong open-source development communities or those contributing to or consuming Rust-based projects may be more exposed. Additionally, sectors with stringent compliance requirements around software integrity, such as finance, healthcare, and critical infrastructure, could face regulatory and operational risks if this vulnerability is exploited.

CWE-328Use of Weak Hash (opens in a new tab)
Base weaknessOWASP Top 10 A04:2025: Cryptographic Failures (opens in a new tab)
The product uses an algorithm that produces a digest (output value) that does not meet security expectations for a hash function that allows an adversary to reasonably determine the original input (preimage attack), find another input that can produce the same hash (2nd preimage attack), or find multiple inputs that evaluate to the same hash (birthday attack).
Architecture and Design
Use an adaptive hash function that can be configured to change the amount of computational effort needed to compute the hash, such as the number of iterations ("stretching") or the amount of memory required. Some hash functions perform salting automatically.
OWASP Cheat Sheets
Cryptographic Storage (opens in a new tab)
Key Management (opens in a new tab)
Transport Layer Protection (opens in a new tab)
User Privacy Protection (opens in a new tab)
Password Storage (opens in a new tab)
OWASP ASVS 4.0.3
V2.8.3 (opens in a new tab)
V8.3.7 (opens in a new tab)
V2.9.3 (opens in a new tab)
Attack patterns
Web Services API Signature Forgery Leveraging Hash Function Extension Weakness (opens in a new tab)
Subvert Code-signing Facilities (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 23 Jan 2026, 17:35 UTC

WeaknessesCWE-328

Technical details

References

Community reviews

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