Cyber Resilience

CVE-2026-6429

Haxx Curl 7.14.0 – 8.20.0

Public PoC
Published
13 May 2026
Modified
17 June 2026
Patch / advisory
View advisory
CVSS Score v3.1 5.3
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS Score 0.0052 42th percentile
Risk Priority 42 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2026-6429 is a medium-severity an unspecified weakness vulnerability in Haxx Curl. Its CVSS base score is 5.3 (Medium).

Operationally, ranked at the 42th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability Data

When asked to both use a `.netrc` file for credentials and to follow HTTP redirects, libcurl could leak the password used for the first host to the followed-to host under certain circumstances.

CWE(s)
NVD-CWE-noinfo

Related Threats

CVEs Like This One

CVE-2026-8458Same product: Haxx Curl
CVE-2026-5773Same product: Haxx Curl
CVE-2025-15079Same product: Haxx Curl
CVE-2024-0853Same product: Haxx Curl
CVE-2026-3784Same product: Haxx Curl
CVE-2026-3805Same product: Haxx Curl
CVE-2026-10536Same product: Haxx Curl
CVE-2025-14819Same product: Haxx Curl
CVE-2026-11586Same product: Haxx Curl
CVE-2025-15224Same product: Haxx Curl

Affected Assets

haxx
curl
7.14.0 — 8.20.0

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References