CVE-2023-4055
Mozilla: Cookie jar overflow caused unexpected cookie jar state
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · August 1, 2023
Updated · November 21, 2025
Description
The Mozilla Foundation Security Advisory describes this flaw as:
When the number of cookies per domain was exceeded in document.cookie, the actual cookie jar sent to the host was no longer consistent with expected cookie jar state. This could have caused requests to be sent with some cookies missing.
Statement
Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CWE-784 · Reliance on Cookies without Validation and Integrity Checking in a Security Decision