Detections
Analytics
SCA: security update for guzzlehttp/guzzle (GHSA-cwxw-98qj-8qjx)
medium Tenable Self-Hosted Container Security Plugin ID 443598
Description
There are packages installed that are affected by a vulnerability referenced in the following CVE:- Guzzle is an extensible PHP HTTP client. Prior to 7.12.1, CookieJar incorrectly accepts cookies with a
dot-only Domain attribute and whitespace-padded variants. SetCookie::matchesDomain() removes leading dots
from the cookie domain, normalizing dot-only values to the empty string; SetCookie::validate() only
rejected a strictly empty domain, so these cookies could be stored and the empty normalized domain was
treated as matching any request host. An attacker-controlled origin that an application requests with a
shared cookie jar can therefore set a cookie that Guzzle later sends to unrelated hosts using the same
jar. This may allow cookie injection or session fixation against downstream services, depending on how
those services interpret the injected cookie. This vulnerability is fixed in 7.12.1. (CVE-2026-55767)
Solution
Update the guzzlehttp/guzzle library and its related packages to version 7.12.1 or later.See Also
Plugin Details
Severity: Medium
ID: 443598
Version: Revision 1.6
Type: Local
Family: SCA Checks
Published: 6/19/2026
Updated: 7/2/2026
Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security
Risk Information
VPR
Risk Factor: Low
Score: 1.2
Percentile: 0.01
Vendor
Vendor Severity: Medium
CVSS v2
Risk Factor: Medium
Base Score: 5
Temporal Score: 3.7
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N
CVSS Score Source: CVE-2026-55767
CVSS v3
Risk Factor: Medium
Base Score: 5.8
Temporal Score: 5.1
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
Exploit Ease: No known exploits are available
Patch Publication Date: 6/19/2026
Vulnerability Publication Date: 6/19/2026
Reference Information
CVE: CVE-2026-55767