Fedora 42 rustup Denial of Service Vulnerability CVE-2026-25537
fedora
February 11, 2026
Update the time crate to version 0.3.47
Summary
Manage multiple rust installations with ease.
Update Information:
Update the time crate to version 0.3.47. Update the time-macros crate to version 0.2.27. Update the time-core crate to version 0.1.8. Update the num-conv crate to version 0.2.0. Update the git2 crate to version 0.20.4. Update the bytes crate to version 1.11.1. Additionally, this update contains rebuilds of applications affected by security advisories: bytes: RUSTSEC-2026-0007 git2: RUSTSEC-2026-0008 jsonwebtoken: CVE-2026-25537 time: RUSTSEC-2026-0009 All applications that statically link libgit2 via the git2 Rust bindings were also rebuilt against the latest version of the git2 / libgit2-sys crates to pull in fixes included in libgit2 between v1.8.1 and v1.9.2.
Topics Covered
Change Log
* Sat Feb 7 2026 Fabio Valentini
References
[ 1 ] Bug #2437465 - CVE-2026-25537 rust-jsonwebtoken: jsonwebtoken has Type Confusion that leads to potential authorization bypass [fedora-42]
https://bugzilla.redhat.com/show_bug.cgi?id=2437465
[ 2 ] Bug #2437467 - CVE-2026-25537 uv: jsonwebtoken has Type Confusion that leads to potential authorization bypass [fedora-42]
https://bugzilla.redhat.com/show_bug.cgi?id=2437467
[ 3 ] Bug #2438046 - CVE-2026-25727 atuin: time affected by a stack exhaustion denial of service attack [fedora-42]
https://bugzilla.redhat.com/show_bug.cgi?id=2438046
[ 4 ] Bug #2438075 - CVE-2026-25727 keylime-agent-rust: time affected by a stack exhaustion denial of service attack [fedora-42]
https://bugzilla.redhat.com/show_bug.cgi?id=2438075
[ 5 ] Bug #2438077 - CVE-2026-25727 maturin: time affected by a stack exhaustion denial of service attack [fedora-42]
https://bugzilla.redhat.com/show_bug.cgi?id=2438077
[ 6 ] Bug #2438086 - CVE-2026-25727 rus...
Update Instructions
This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-6388b28850' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label
PREVIOUS
NEXT
Severity
important
Lowest
Low
Medium
High
Critical
Name: rustup
Product: Fedora 42
Version: 1.28.2
Release: 8.fc42
Summary: Manage multiple rust installations with ease
Topics Covered
Get the latest News and Insights
Get the latest Linux and open source security news straight to your inbox.
Related News
Powered By
Linux Security - Your source for Top Linux News, Advisories, HOWTOs and Feature Releases
QUICK LINKS
subscribe to newsletters!
Like staying secure? So do we.
Sign up for updates, tips, and alerts!