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Advisory severityMedium5.3Vendor: LowRed Hat Linux

Medium [CVE-2026-86409] stale SigV4 headers sent unintended

This medium-severity Red Hat Linux advisory covers CVE-2026-86409; related products: Red Hat Hardened Images, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-86409 Source published Source updated

VulniPulse record published Record updated

CVE-2026-86409
Related products & platforms
Red Hat LinuxRed Hat Enterprise Linux
Open source advisory

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Summary

stale SigV4 headers sent unintended. Red Hat rates this low (CVSS 5.3).

Weakness: CWE-201. Red Hat lists fixing advisory RHSA-2026:82895 with package curl-main-8.23.0-0.1.hum1.

Affected products named by the advisory: Red Hat Hardened Images; Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 9; Red Hat JBoss Core Services; and 3 more.

Affected products named by the advisory: Red Hat Satellite 6; Red Hat package: curl; Red Hat package: snphost.

Affected versions

No affected-version range was extracted from the source record. The vendor advisory is authoritative. Check it before change work.

Official advisory · high-confidence parse· fetched 16 days ago·verify at source

Fixed versions
  • curl-main-8.23.0-0.1.hum1
  • RHSA-2026:82895

Official advisory · high-confidence parse· fetched 16 days ago·verify at source

Mitigation

Upgrade to a fixed release: curl-main-8.23.0-0.1.hum1, RHSA-2026:82895. That is the remediation for this advisory.

The vendor advisory may list interim mitigations or workarounds not captured here. Review it before change work.

Official advisory · high-confidence parse· fetched 16 days ago·verify at source

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