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CVE-2023-4055
When the number of cookies per domain was exceeded in `document.cookie`, the actual cookie jar sent to the host was no longer consistent…
High7.5EPSS 0.73%
- Published
- Updated
- Reserved
- Assigned by
- mozilla
Description
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. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
- EPSS (exploitation in 30 days)
- 0.73% · top 45% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
- Cookie jar overflow caused unexpected cookie jar state
- CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') (opens in a new tab)All about CWE-120 and its CVEs
Affected products
- affected unspecified – < 116
- affected unspecified – < 102.14
- affected unspecified – < 115.1
References (8)
- https://bugzilla.mozilla.org/show_bug.cgi?id=1782561 (opens in a new tab)x_transferred
- https://www.mozilla.org/security/advisories/mfsa2023-29/ (opens in a new tab)x_transferred
- https://www.mozilla.org/security/advisories/mfsa2023-30/ (opens in a new tab)x_transferred
- https://www.mozilla.org/security/advisories/mfsa2023-31/ (opens in a new tab)x_transferred
- https://www.debian.org/security/2023/dsa-5464 (opens in a new tab)x_transferred
- https://www.debian.org/security/2023/dsa-5469 (opens in a new tab)x_transferred
- https://lists.debian.org/debian-lts-announce/2023/08/msg00008.html (opens in a new tab)x_transferred
- https://lists.debian.org/debian-lts-announce/2023/08/msg00010.html (opens in a new tab)x_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2023-4055)Record last updated .