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CVE-2026-86413

CVE-2026-86413 · Negotiate credentials sent to redirected origin

This page contains facts from public vulnerability sources. Check the original advisory before updating.

When using an *ambient user* in a first transfer doing Negotiate authentication and asked to follow redirects, curl could pass on its credential details to an unrelated second origin when asked to redirect there.

EPSS 0.3%

Published
Updated

Stack: system

Affected products and versions

  • curl

    Versions
    • ≥ 8.22.0, ≤ 8.22.0: Affected (semver)
    • ≥ 8.21.0, ≤ 8.21.0: Affected (semver)

    No fix published

  • curl Debian:14

    Versions
    • 8.14.1-2
    • 8.14.1-2+exp1
    • 8.15.0-1
    • 8.15.0-1~bpo13+1
    • 8.15.0-1~exp1
    • 8.15.0~rc1-1exp1
    • 8.15.0~rc2-1~exp1
    • 8.15.0~rc3-1~exp1
    • 8.16.0-1
    • 8.16.0-1+exp1
    • 8.16.0-1~bpo13+1
    • 8.16.0-2
    • 8.16.0-3
    • 8.16.0-4
    • 8.16.0-4~bpo13+1
    • 8.16.0~rc1-1~exp1
    • 8.16.0~rc2-1
    • 8.16.0~rc2-2
    • 8.16.0~rc3-1
    • 8.17.0-1
    • 8.17.0-2
    • 8.17.0-3
    • 8.17.0~rc1-1~exp1
    • 8.17.0~rc2-1
    • 8.17.0~rc3-1
    • 8.18.0-1
    • 8.18.0-1~bpo13+1
    • 8.18.0-2
    • 8.18.0~rc1-1+exp1
    • 8.18.0~rc2-1
    • 8.18.0~rc3-1
    • 8.19.0-1
    • 8.19.0-1+exp1
    • 8.19.0-1~bpo13+1
    • 8.19.0-2
    • 8.19.0-3
    • 8.19.0-3+exp1
    • 8.19.0-3+exp2
    • 8.19.0~rc1-1~exp1
    • 8.19.0~rc2-1
    • 8.19.0~rc2-2
    • 8.19.0~rc3-1
    • 8.20.0-1
    • 8.20.0-1+exp
    • 8.20.0-2
    • 8.20.0-2+exp1
    • 8.20.0-2~bpo13+1
    • 8.20.0-3
    • 8.20.0-4
    • 8.20.0-5
    • 8.20.0-5~bpo13+1
    • 8.20.0~rc1-1+exp1
    • 8.20.0~rc1-1+exp2
    • 8.20.0~rc1-1+exp3
    • 8.20.0~rc2-1
    • 8.20.0~rc2-1+exp1
    • 8.20.0~rc3-1
    • 8.20.0~rc3-1+exp1
    • 8.21.0-1
    • 8.21.0-1+exp1
    • 8.21.0-2
    • 8.21.0-2+exp1
    • 8.21.0-2~bpo13+1
    • 8.21.0~rc1-1+exp1
    • 8.21.0~rc2-1
    • 8.21.0~rc2-1+exp1
    • 8.21.0~rc3-1
    • 8.21.0~rc3-1+exp1
    • 8.22.0-1
    • 8.22.0-1+exp1
    • 8.22.0~rc2-1
    • 8.22.0~rc2-2
    • 8.22.0~rc3-1
    • 8.22.0~rc3-1+exp1
    • 8.23.0-1
    • 8.23.0~rc1-1
    • 8.23.0~rc1-2
    • 8.23.0~rc2-1
    • 8.23.0~rc2-1+exp1
    • 8.23.0~rc3-1
    • 8.23.0~rc3-1+exp1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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