Bug 2508603 (CVE-2026-18022)

Summary: CVE-2026-18022 pgvector: pgvector: Arbitrary Code Execution via Integer Wraparound
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: anpicker, bparees, dbosanac, dfreiber, drow, dschmidt, ebourniv, hasun, jburrell, jfula, jlanda, jowilson, jreimann, kshier, lgallett, mdessi, mrizzi, nyancey, ometelka, pcattana, ptisnovs, rhel-process-autobot, sbunciak, simaishi, stcannon, syedriko, teagle, vkumar, watson-tool-maintainers, xdharmai, yguenane
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in pgvector. An integer wraparound vulnerability exists during the IVFFlat index build process. This flaw allows a database user on a 32-bit system to write data outside of allocated memory buffers. Successful exploitation could lead to arbitrary code execution.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-07-29 20:01:16 UTC
Integer wraparound in IVFFlat index build in pgvector before 0.8.6 allows a database user to write data out-of-bounds, which could lead to arbitrary code execution. Only 32-bit systems are affected.