Bug 2544885 (CVE-2026-56153)

Summary: CVE-2026-56153 httpd: httpd: Denial of Service via heap-based buffer overflow in mod_charset_lite
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: csutherl, jclere, pjindal, plodge, rhel-process-autobot, szappis, vchlup, watson-tool-maintainers
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Doc Text:
A flaw was found in httpd's mod_charset_lite module. A heap-based buffer overflow (an out-of-bounds memory write) occurs in the finish_partial_char function when handling character set conversions. A remote attacker can exploit this flaw by sending specially crafted requests, leading to memory corruption. This issue primarily results in a Denial of Service (DoS) condition by crashing the server process.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2545040    
Bug Blocks:    

Description OSIDB Bzimport 2026-10-01 23:12:36 UTC
Out-of-bounds Write vulnerability in Apache HTTP Server's mod_charset_lite.



This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.