Bug 2458967 (CVE-2026-41080)
| Summary: | CVE-2026-41080 libexpat: expat: libexpat: Denial of Service via hash flooding with crafted XML | ||
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| Product: | [Other] Security Response | Reporter: | OSIDB Bzimport <bzimport> |
| Component: | vulnerability | Assignee: | Product Security DevOps Team <prodsec-dev> |
| Status: | NEW --- | QA Contact: | |
| Severity: | low | Docs Contact: | |
| Priority: | low | ||
| Version: | unspecified | CC: | crizzo, jmitchel, kaycoth, kshier, rhel-process-autobot, stcannon, teagle, watson-tool-maintainers, yguenane |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | --- | |
| Doc Text: |
A flaw was found in libexpat. A remote attacker could exploit this vulnerability by providing a specially crafted XML document that leverages insufficient entropy in the hash function. This can lead to hash flooding, a type of Denial of Service (DoS) attack, where the system becomes unresponsive or crashes due to excessive resource consumption.
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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: | 2459020, 2459021 | ||
| Bug Blocks: | |||
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Description
OSIDB Bzimport
2026-04-16 17:01:29 UTC
Public upstream commit for this issue: https://github.com/libexpat/libexpat/pull/1183/commits/f5eacefb24a69901a3a608dd4c8697d26cff2c6b |