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curl: curl: stale SigV4 headers sent unintended

🗓️ 14 Oct 2026 11:39:33Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 5 Views

curl fails to clear AWS SigV4 headers on reused handles, leading to information disclosure.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
alpinelinux
AlpineLinux
CVE-2026-86409
14 Oct 202608:00
–alpinelinux
curl
curl security advisories
stale SigV4 headers sent unintended
14 Oct 202608:00
–curl
cve
CVE
CVE-2026-86409
14 Oct 202608:00
–cve
debiancve
Debian CVE
CVE-2026-86409
14 Oct 202608:00
–debiancve
hackerone
Hacker One
curl: CVE-2026-86409: stale SigV4 headers sent unintended
27 Aug 202609:03
–hackerone
mend
Mend
CVE-2026-86409
14 Oct 202609:57
–mend
mageia
Mageia
Updated curl package fixes security vulnerabilities
17 Oct 202603:21
–mageia
osv_curl
osv_curl
CURL-CVE-2026-86409 stale SigV4 headers sent unintended
14 Oct 202608:00
–osv_curl
osv_debian
osv_debian
DEBIAN-CVE-2026-86409
14 Oct 202607:47
–osv_debian
osv_echo
osv_echo
ECHO-B6FB-B123-10DB
14 Oct 202613:50
–osv_echo
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Hardened Imagesanyaarch64curl8.23.0-0.1.hum1curl-8.23.0-0.1.hum1.aarch64.rpm
Red Hat Hardened Imagesanys390xcurl8.23.0-0.1.hum1curl-8.23.0-0.1.hum1.s390x.rpm
Red Hat Hardened Imagesanyx86_64curl8.23.0-0.1.hum1curl-8.23.0-0.1.hum1.x86_64.rpm
Red Hat Hardened Imagesanyaarch64libcurl8.23.0-0.1.hum1libcurl-8.23.0-0.1.hum1.aarch64.rpm
Red Hat Hardened Imagesanys390xlibcurl8.23.0-0.1.hum1libcurl-8.23.0-0.1.hum1.s390x.rpm
Red Hat Hardened Imagesanyx86_64libcurl8.23.0-0.1.hum1libcurl-8.23.0-0.1.hum1.x86_64.rpm
Red Hat Hardened Imagesanyaarch64libcurl-devel8.23.0-0.1.hum1libcurl-devel-8.23.0-0.1.hum1.aarch64.rpm
Red Hat Hardened Imagesanys390xlibcurl-devel8.23.0-0.1.hum1libcurl-devel-8.23.0-0.1.hum1.s390x.rpm
Red Hat Hardened Imagesanyx86_64libcurl-devel8.23.0-0.1.hum1libcurl-devel-8.23.0-0.1.hum1.x86_64.rpm
Red Hat Hardened Imagesanyaarch64libcurl-minimal8.23.0-0.1.hum1libcurl-minimal-8.23.0-0.1.hum1.aarch64.rpm
Rows per page

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17 Oct 2026 12:55Current
5.7Medium risk
Vulners AI Score5.7
5