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Vulnerability record · CVE-2024-8096 · published 11 September 2024

CVE-2024-8096: Haxx curl improper certificate validation vulnerability

Haxx · Curl

When curl is told to use the Certificate Status Request TLS extension, often referred to as OCSP stapling, to verify that the server certificate is valid, it might fail to detect some OCSP problems and instead wrongly consider the response as fine. If the returned status reports another error than 'revoked' (like for example 'unauthorized') it is not treated as a bad certficate.

6.5 CVSS 3.1 Medium EPSS 0.73% · top 47.6% CWE-295 · Improper certificate validation
6.5CVSS 3.1 base score
0.73%EPSS exploitation probability, 30 days
NoNot in CISA KEV
10Affected product versions listed by NVD
6References, 1 tagged exploit
17 Jun 2026Last modified by NVD

Description

When curl is told to use the Certificate Status Request TLS extension, often referred to as OCSP stapling, to verify that the server certificate is valid, it might fail to detect some OCSP problems and instead wrongly consider the response as fine. If the returned status reports another error than 'revoked' (like for example 'unauthorized') it is not treated as a bad certficate.

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

Affected products

10 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://curl.se/docs/CVE-2024-8096.html Vendor Advisory
https://curl.se/docs/CVE-2024-8096.json Vendor Advisory
https://hackerone.com/reports/2669852 ExploitIssue TrackingThird Party Advisory
http://www.openwall.com/lists/oss-security/2024/09/11/1 Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2024/11/msg00008.html Mailing ListThird Party Advisory
https://security.netapp.com/advisory/ntap-20241011-0005/ Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2024-8096), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.