Critical severity9.8NVD Advisory· Published Feb 9, 2021· Updated Jun 17, 2026
CVE-2021-26955
CVE-2021-26955
Description
An issue was discovered in the xcb crate through 2021-02-04 for Rust. It has a soundness violation because xcb::xproto::GetAtomNameReply::name() calls std::str::from_utf8_unchecked() on unvalidated bytes from an X server.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
xcbcrates.io | < 1.0.0 | 1.0.0 |
Affected products
3- Rust/xcbdescription
Patches
Vulnerability mechanics
References
4- rustsec.org/advisories/RUSTSEC-2021-0019.htmlnvdExploitVendor AdvisoryWEB
- github.com/advisories/GHSA-3288-cwgw-ch86ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-26955ghsaADVISORY
- github.com/RustSec/advisory-db/issues/653ghsaWEB
News mentions
0No linked articles in our index yet.