CVE-2023-46589
No exploitation reported by the sources we read.
- Published2023-11-28
- Fixed in11.0.0-M11 · 10.1.16 · 9.0.83 · 8.5.96
- WeaknessCWE-444
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
Improper Input Validation vulnerability in Apache Tomcat.Tomcat from 11.0.0-M1 through 11.0.0-M10, from 10.1.0-M1 through 10.1.15, from 9.0.0-M1 through 9.0.82 and from 8.5.0 through 8.5.95 did not correctly parse HTTP trailer headers. A trailer header that exceeded the header size limit could cause Tomcat to treat a single request as multiple requests leading to the possibility of request smuggling when behind a reverse proxy. Older, EOL versions may also be affected. Users are recommended to upgrade to version 11.0.0-M11 onwards, 10.1.16 onwards, 9.0.83 onwards or 8.5.96 onwards, which fix the issue.
Timeline
dates in UTC- 2023-11-2816:15CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 21:37 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-46589?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-46589?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
OSV · NVD · CISA-ADP| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 11.0 | ≥ 11.0.0-M1, < 11.0.0-M11 | 11.0.0-M11 | OSV |
| 10.1 | ≥ 10.1.0, < 10.1.16 | 10.1.16 | NVD · OSV |
| 10.1 | ≥ 10.1.0-M1, < 10.1.16 | 10.1.16 | OSV |
| 9.0 | ≥ 9.0.0, < 9.0.83 | 9.0.83 | NVD · OSV |
| 9.0 | ≥ 9.0.0-M1, < 9.0.83 | 9.0.83 | OSV |
| 8.5 | ≥ 8.5.0, < 8.5.96 | 8.5.96 | NVD · OSV |
| 11.0 | = 11.0.0 | no fix published | NVD |
| 11.0 | ≥ 11.0.0-m1, ≤ 11.0.0-m10 | no fix published | CISA-ADP |
| 10.1 | ≥ 10.1.0-M1, ≤ 10.1.15 | no fix published | CISA-ADP |
| 9.0 | ≥ 9.0.0-M1, ≤ 9.0.82 | no fix published | CISA-ADP |
| 8.5 | ≥ 8.5.0, ≤ 8.5.95 | no fix published | CISA-ADP |
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Distribution builds and vendor advisories
Packages from OSV.dev and products from the vendors' CSAF advisories.
version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.
Packages
- tomcatAlmaLinux:9all versions · fixed in 1:9.0.62-37.el9_3.2and 7 other packages
- tomcatAlmaLinux:8all versions · fixed in 1:9.0.62-27.el8_9.3and 7 other packages
Fix
- Update Apache Tomcat to 11.0.0-M11 · 10.1.16 · 9.0.83 · 8.5.96
Advisories and patches
- lists.apache.orgVendor Advisory
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- Published
- 2023-11-28
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2023-46589?
Is CVE-2023-46589 actively exploited?
What is the CVSS score for CVE-2023-46589?
Running Apache Tomcat? Hear about its next vulnerability
Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».
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Go further
- Following what attackers exploit right now? The CISA KEV additions of the month, with their patch deadlines.
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Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.