Bug 2494977
| Summary: | CVE-2026-13149 yarnpkg: Brace-expansion: Denial of Service due to exponential-time complexity [fedora-all] | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Jon Weiser <jweiser> |
| Component: | yarnpkg | Assignee: | Orphan Owner <extras-orphan> |
| Status: | NEW --- | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | 45 | CC: | epel-packagers-sig, ngompa13 |
| Target Milestone: | --- | Keywords: | Security, SecurityTracking |
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | {"flaws": ["a0503c46-8af3-4431-ae96-380459f000d0"]} | ||
| Fixed In Version: | Doc Type: | --- | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | Type: | --- | |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | |||
| Bug Blocks: | 2494813 | ||
This package has changed maintainer in Fedora. Reassigning to the new maintainer of this component. This bug appears to have been reported against 'rawhide' during the Fedora Linux 45 development cycle. Changing version to 45. |
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process. brace-expansion through 5.0.6 is vulnerable to denial of service. The expand() function exhibits exponential-time complexity in the number of consecutive non-expanding '{}' brace groups. An attacker who passes a crafted string to expand(), directly or transitively, can cause significant CPU consumption and event-loop blocking. The max option does not mitigate this, as it bounds the output size rather than the recursion work.