This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 0.5%, top 58% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
A fix is available — apply it.
Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') vulnerability in Apache Tomcat via invalid chunk extension.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.18, from 10.1.0-M1 through 10.1.52, from 9.0.0.M1 through 9.0.115, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Other, unsupported versions may also be affected.
Users are recommended to upgrade to version 11.0.20, 10.1.52 or 9.0.116, which fix the issue.
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
April 9, 2026
April 14, 2026
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Red Hat Security Advisory: tomcat9 security, bug fix, and enhancement update
Red Hat Security Advisory: Red Hat JBoss Web Server 6.2.3 release and security update
Red Hat Security Advisory: Red Hat JBoss Web Server 6.2.3 release and security update
Apache Tomcat has an HTTP Request/Response Smuggling vulnerability
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| redhat | tomcat9-1:9.0.117-2.el10_2 | 2026-07-08 | redhat |
| redhat | tomcat | 2026-05-26 | redhat |
| redhat | jws6-tomcat-0:10.1.49-13.redhat_00011.1.el9jws | 2026-05-26 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| tomcat10 | 10.1.40-1 ... 10.1.55-1~deb12u1 (8 versions) | 10.1.55-1~deb13u1 | — |
| tomcat11 | 11.0.11-1 ... 11.0.6-1 (6 versions) | 11.0.22-1~deb13u1 | — |
| tomcat9 | — | 9.0.70-2 | — |
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| tomcat10 | 10.1.40-1 ... 10.1.52-2 (6 versions) | 10.1.54-1 | — |
| tomcat11 | 11.0.11-1, 11.0.15-1, 11.0.15-1~deb13u1, 11.0.18-1, 11.0.6-1 | 11.0.21-1 | — |
| tomcat9 | — | 9.0.70-2 | — |
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| tomcat10 | 10.1.10-1 ... 10.1.9-1 (33 versions) | 10.1.55-1~deb12u1 | — |
| tomcat9 | — | 9.0.70-2 | — |
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| org.apache.tomcat.embed:tomcat-embed-core | 11.0.0 ... 11.0.9 (40 versions) | 11.0.20 | — |
| org.apache.tomcat:tomcat-coyote | 11.0.0 ... 11.0.9 (40 versions) | 11.0.20 | — |
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| tomcat9 | 9.0.107-0+deb11u1 ... 9.0.95-1 (34 versions) | 9.0.118-0+deb11u1 | — |
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 205 total refreshes for this CVE.
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-24880
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