How severe is GHSA-2wq5-g96f-mv3v?

No CVSS score has been assigned to GHSA-2wq5-g96f-mv3v yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by GHSA-2wq5-g96f-mv3v?

GHSA-2wq5-g96f-mv3v affects the following packages: ouch (crates.io). Ecosystems affected: crates.io.

How do I fix GHSA-2wq5-g96f-mv3v?

Update ouch to 0.3.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-2wq5-g96f-mv3v is resolved across your whole dependency graph.

How do I detect GHSA-2wq5-g96f-mv3v in my crates.io dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for ouch, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate GHSA-2wq5-g96f-mv3v if there is no patch (or I can't update yet)?

If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Is GHSA-2wq5-g96f-mv3v actively exploited in the wild?

No public exploit code has been indexed for GHSA-2wq5-g96f-mv3v yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

When was GHSA-2wq5-g96f-mv3v published, and has it been updated?

GHSA-2wq5-g96f-mv3v was published on September 23, 2024 and was last updated on October 28, 2025. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

Ouch! allows a segmentation fault due to use of…

Real-World Exposure

1 pkg affected

🦀ouch

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects crates.io packages — download data is not available via public APIs for these ecosystems.

Description

When trying to decompress a file using "ouch", we can reach the function "ouch::archive::zip::convert_zip_date_time". In the function, there is a unsafe function, "transmute". Once the "transmute" function is called to convert the type of "month" object, the address of the object is changed to the uninitialized memory region. After that, when other function tries to dereference "month", segmentation fault occurs.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🦀crates.io	`ouch`	all versions	0.3.1`cargo update -p ouch --precise 0.3.1`

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for ouch, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update ouch to 0.3.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-2wq5-g96f-mv3v is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

When trying to decompress a file using "ouch", we can reach the function "ouch::archive::zip::convert_zip_date_time". In the function, there is a unsafe function, "transmute". Once the "transmute" function is called to convert the type of "month" object, the address of the object is changed to the uninitialized memory region. After that, when other function tries to dereference "month", segmentation fault occurs.

O3 Security · Impact-Aware SCA

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