Curl 8.5.0 < 8.6.0 Security Bypass (CVE-2024-0853)

medium Nessus Plugin ID 189941


The remote host has a program that is affected by a security bypass vulnerability.


The version of Curl installed on the remote host is between 8.5.0 prior to 8.6.0. It is, therefore, affected by a security bypass vulnerability. Curl inadvertently kept the SSL session ID for connections in its cache even when the verify status (OCSP stapling) test failed. A subsequent transfer to the same hostname could then succeed if the session ID cache was still fresh, which then skipped the verify status check.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.


Upgrade Curl to version 8.6.0 or later

See Also

Plugin Details

Severity: Medium

ID: 189941

File Name: curl_CVE-2024-0853.nasl

Version: 1.5

Type: local

Agent: windows, macosx, unix

Family: Misc.

Published: 2/2/2024

Updated: 4/19/2024

Configuration: Enable thorough checks

Supported Sensors: Nessus Agent, Nessus

Risk Information


Risk Factor: Low

Score: 2.2


Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N

CVSS Score Source: CVE-2024-0853


Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:haxx:curl

Required KB Items: installed_sw/Curl

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/31/2024

Vulnerability Publication Date: 1/31/2024

Reference Information

CVE: CVE-2024-0853

IAVA: 2024-A-0063-S