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Red Hat: CVE-2026-86409: curl: curl: stale SigV4 headers sent unintended

🗓️ 20 Oct 2026 00:00:00Reported by Rapid7Type 
rapid7
 rapid7
🔗 www.rapid7.com👁 2 Views

curl sends stale SigV4 headers on subsequent transfers when CURLOPT_AWS_SIGV4 is NULL.

Related
Refs
ReporterTitlePublishedViews
Family
alpinelinux
AlpineLinux
CVE-2026-86409
20 Oct 202619:57
–alpinelinux
circl
Circl
CVE-2026-86409
20 Oct 202620:01
–circl
curl
curl security advisories
stale SigV4 headers sent unintended
14 Oct 202608:00
–curl
cve
CVE
CVE-2026-86409
20 Oct 202619:57
–cve
cvelist
Cvelist
CVE-2026-86409 stale SigV4 headers sent unintended
20 Oct 202619:57
–cvelist
debiancve
Debian CVE
CVE-2026-86409
20 Oct 202619:57
–debiancve
euvd
EUVD
EUVD-2026-105274
20 Oct 202619:57
–euvd
hackerone
Hacker One
curl: CVE-2026-86409: stale SigV4 headers sent unintended
27 Aug 202609:03
–hackerone
mend
Mend
CVE-2026-86409
20 Oct 202619:57
–mend
mageia
Mageia
Updated curl package fixes security vulnerabilities
17 Oct 202603:21
–mageia
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20 Oct 2026 00:00Current
5.9Medium risk
Vulners AI Score5.9
EPSS0.00248
2