Bug 2566583 (CVE-2026-121727) - CVE-2026-121727 kore: kore: Denial of Service via integer underflow in HTTP request body handling
Summary: CVE-2026-121727 kore: kore: Denial of Service via integer underflow in HTTP r...
Keywords:
Status: NEW
Alias: CVE-2026-121727
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-11-03 23:02 UTC by OSIDB Bzimport
Modified: 2026-11-06 16:24 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2026-11-03 23:02:24 UTC 
Kore before 4.3.0 contains an integer underflow vulnerability in HTTP request body handling that allows unauthenticated attackers to bypass http_body_max by sending more body bytes than declared. Attackers can send oversized first segments over many concurrent POST, PUT or DELETE connections, wrapping content_length to grow buffers unbounded and exhaust worker memory.
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