How severe is GHSA-xcpm-76hf-c9cc?

No CVSS score has been assigned to GHSA-xcpm-76hf-c9cc yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by GHSA-xcpm-76hf-c9cc?

GHSA-xcpm-76hf-c9cc affects the following packages: borrowck_sacrifices (crates.io). Ecosystems affected: crates.io.

How do I fix GHSA-xcpm-76hf-c9cc?

Update borrowck_sacrifices to 0.2.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-xcpm-76hf-c9cc is resolved across your whole dependency graph.

How do I detect GHSA-xcpm-76hf-c9cc in my crates.io dependencies?

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

How do I mitigate GHSA-xcpm-76hf-c9cc 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-xcpm-76hf-c9cc actively exploited in the wild?

No public exploit code has been indexed for GHSA-xcpm-76hf-c9cc 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-xcpm-76hf-c9cc published, and has it been updated?

GHSA-xcpm-76hf-c9cc was published on October 22, 2025 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.

🦀 crates.io

Not in CISA KEV

Borrowck Scarifices exposes uninitialized memory in any_as_u8_sliceGHSA-xcpm-76hf-c9cc

Fix: alexpyattaev/borrowck_sacrifices@1bdaa14

GHSA-xcpm-76hf-c9cc is a security vulnerability in borrowck_sacrifices. A fix is available for borrowck_sacrifices — see the affected versions and patch details below.

Also known asRUSTSEC-2025-0107

Published

Oct 22, 2025

Updated

Oct 28, 2025

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Oct 28, 2025 · OSV.dev, FIRST.org (EPSS)

Real-World Exposure

1 pkg affected

🦀borrowck_sacrifices

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

The safe function any_as_u8_slice can create byte slices that reference uninitialized memory when used with types containing padding bytes.

The function uses slice::from_raw_parts to create a &[u8] covering the entire size of a type, including padding bytes. According to Rust's documentation, from_raw_parts requires all bytes to be properly initialized, but padding bytes in structs are not guaranteed to be initialized. This violates the safety contract and causes undefined behavior.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🦀crates.io	`borrowck_sacrifices`	all versions	0.2.0`cargo update -p borrowck_sacrifices --precise 0.2.0`

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for borrowck_sacrifices, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update borrowck_sacrifices to 0.2.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-xcpm-76hf-c9cc 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

The safe function `any_as_u8_slice` can create byte slices that reference uninitialized memory when used with types containing padding bytes. The function uses `slice::from_raw_parts` to create a `&[u8]` covering the entire size of a type, including padding bytes. According to Rust's documentation, `from_raw_parts` requires all bytes to be properly initialized, but padding bytes in structs are not guaranteed to be initialized. This violates the safety contract and causes undefined behavior.

O3 Security · Impact-Aware SCA

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