Bug 2491186 (CVE-2026-56403)
| Summary: | CVE-2026-56403 libexpat: libexpat: Arbitrary code execution due to integer overflow in storeAtts | ||
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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: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | adudiak, csutherl, dschmidt, erezende, gtanzill, ilpinto, jbuscemi, jclere, jkoehler, jlanda, jmitchel, jwong, kshier, lphiri, ltomasbo, omaciel, pbohmill, pjindal, plodge, rhel-process-autobot, simaishi, smcdonal, stcannon, szappis, teagle, ttakamiy, vchlup, watson-tool-maintainers, yguenane, ykashtan |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | --- | |
| Doc Text: |
A flaw was found in libexpat. An integer overflow vulnerability exists in the `storeAtts` function. This flaw could allow an attacker to corrupt memory, leading to a denial of service, information disclosure, or potentially arbitrary code execution, compromising the integrity and confidentiality of data.
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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: | |||
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Description
OSIDB Bzimport
2026-06-21 16:01:25 UTC
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