Information Exposure Affecting curl-debuginfo package, versions <0:8.21.0-5.amzn2023.0.1


Severity

Recommended
0.0
medium
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.69% (51st percentile)

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  • Snyk IDSNYK-AMZN2023-CURLDEBUGINFO-19816577
  • published15 Sept 2026
  • disclosed3 Jul 2026

Introduced: 3 Jul 2026

CVE-2026-11856  (opens in a new tab)
CWE-201  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 curl-debuginfo to version 0:8.21.0-5.amzn2023.0.1 or higher.
This issue was patched in ALAS2023-2026-2132.

NVD Description

Note: Versions mentioned in the description apply only to the upstream curl-debuginfo package and not the curl-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

Successfully using libcurl to do a transfer to a specific HTTP origin (hostA) with Digest authentication and then changing the origin to a different one (hostB) for a second transfer, reusing the same handle, makes libcurl wrongly pass on the Authorization: header field meant for hostA, to hostB.

CVSS Base Scores

version 3.1