CVE-2026-86409 Affecting libcurl4-32bit package, versions <8.14.1-150400.5.98.1


Severity

Recommended
medium

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
1.1% (66th percentile)

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  • Snyk IDSNYK-SLES155-LIBCURL432BIT-22149795
  • published3 Nov 2026
  • disclosed30 Oct 2026

Introduced: 30 Oct 2026

NewCVE-2026-86409  (opens in a new tab)

How to fix?

Upgrade SLES:15.5 libcurl4-32bit to version 8.14.1-150400.5.98.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libcurl4-32bit package and not the libcurl4-32bit package as distributed by SLES. See How to fix? for SLES:15.5 relevant fixed versions and status.

Setting CURLOPT_AWS_SIGV4 to NULL but does not disable SigV4 authentication, contrary to expectations and documentation. A subsequent transfer on the same handle still sends an Authorization: AWS4-HMAC-SHA256 header to whatever URL isset next, leaking state information.

CVSS Base Scores

version 3.1