CVE-2023-28709Apache Tomcat: Fix for CVE-2023-24998 is incomplete
- 7.5HighCVSS base score
- 48.0%Exploitation in 30 daysEPSS · top 1.1% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
The fix for CVE-2023-24998 was incomplete for Apache Tomcat 11.0.0-M2 to 11.0.0-M4, 10.1.5 to 10.1.7, 9.0.71 to 9.0.73 and 8.5.85 to 8.5.87. If non-default HTTP connector settings were used such that the maxParameterCount could be reached using query string parameters and a request was submitted that supplied exactly maxParameterCount parameters in the query string, the limit for uploaded request parts could be bypassed with the potential for a denial of service to occur.
Timeline
ID reserved
By apache
- 2 months later
· 2 months later
Published
- 21 months later
· 21 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
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:N/A:H |
- EPSS (exploitation in 30 days)
- 48.0% · top 1.1% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
Apache Software Foundation · Apache Tomcat
- affected 11.0.0-M2 – ≤ 11.0.0-M4
- affected 10.1.5 – ≤ 10.1.7
- affected 9.0.71 – ≤ 9.0.73
- affected 8.5.85 – ≤ 8.5.87
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Mavenorg.apache.tomcat.embed:tomcat-embed-coreGHSA-cx6h-86xw-9x34 (opens in a new tab)
- Mavenorg.apache.tomcat:tomcat-coyoteGHSA-cx6h-86xw-9x34 (opens in a new tab)
References
References5
- https://lists.apache.org/thread/7wvxonzwb7k9hx9jt3q33cmy7j97jo3j (opens in a new tab)vendor-advisoryx_transferred
- http://www.openwall.com/lists/oss-security/2023/05/22/1 (opens in a new tab)x_transferred
- https://security.gentoo.org/glsa/202305-37 (opens in a new tab)x_transferred
- https://security.netapp.com/advisory/ntap-20230616-0004/ (opens in a new tab)x_transferred
- https://www.debian.org/security/2023/dsa-5521 (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)
- EUVD EUVD-2023-2040 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-cx6h-86xw-9x34 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2023-28709)Record last updated .