CVE-2026-8926

9.1 CRITICAL 0.4% exploit odds Fix listed Other

What it is

When asking curl to use a `.netrc` file to find credentials and at the same time specifying a URL with a username (without a password), like `https://[email protected]/`, curl could wrongly get and use the password for *another* user set in the `.netrc` file for that host if such a one exists and there is no match for the specified user.

At a glance

Exploitability: Can be exploited over the network without logging in. High risk of data exposure, data tampering.
Exploit odds: 0.4% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2026-07-03 07:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-09-15 07:16 UTC Last updatedMost recent change to the record

Details

Published: 2026-07-03 07:16 UTC
Last modified: 2026-09-15 07:16 UTC
Exploit probability: 0.4% · EPSS, next 30 days
Weakness: CWE-522
Record status: Modified

Affected

Haxx Curl < 8.21.0

Attack profile CVSS 3.1 · 9.1

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: None

Raw vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

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Fix and advisories

References

NVD record · CVE.org record