CVE-2026-8925

The curl logic that works with SASL authentication could end up cleaning up the GSASL context *twice* without clearing the pointer in between, making it `free()` the same pointer twice.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://curl.se/docs/CVE-2026-8925.html	Patch Vendor Advisory
https://curl.se/docs/CVE-2026-8925.json	Vendor Advisory
https://hackerone.com/reports/3735193	Exploit Issue Tracking Third Party Advisory
https://hackerone.com/reports/3735193	Exploit Issue Tracking Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*

History

07 Jul 2026, 23:04

Type	Values Removed	Values Added
CPE		cpe:2.3:a:haxx:curl::::::::
CWE		CWE-415
References	~~() https://curl.se/docs/CVE-2026-8925.html -~~	() https://curl.se/docs/CVE-2026-8925.html - Patch, Vendor Advisory
References	~~() https://curl.se/docs/CVE-2026-8925.json -~~	() https://curl.se/docs/CVE-2026-8925.json - Vendor Advisory
References	~~() https://hackerone.com/reports/3735193 -~~	() https://hackerone.com/reports/3735193 - Exploit, Issue Tracking, Third Party Advisory
First Time		Haxx curl Haxx

06 Jul 2026, 18:16

Type	Values Removed	Values Added
References	~~() https://hackerone.com/reports/3735193 -~~	() https://hackerone.com/reports/3735193 -
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 9.8

03 Jul 2026, 07:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-03 07:16

Updated : 2026-07-07 23:04

NVD link : CVE-2026-8925

Mitre link : CVE-2026-8925

CVE.ORG link : CVE-2026-8925

JSON object : View

Products Affected

haxx

curl

CWE

CWE-415

Double Free

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