Execution after redirect in Apache Tomcat JSTL redirect tag
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Partial Red Hat: 1 fixed, 8 without a fix
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat.
Summary
Apache Tomcat versions from 11.0.0-M1 through 11.0.26, from 10.1.0-M1 through 10.1.60, and from 9.0.0.M1 through 9.0.122 are affected, as are the end-of-life versions from 8.5.0 through 8.5.100 and from 7.0.0 through 7.0.109. The Jasper JSTL c:redirect plug-in does not abort page processing after a redirect (CWE-698), so code after the redirect still runs. An unauthenticated remote attacker can exploit this when a user interacts with the application, leading to limited data exposure and modification.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
Execution After Redirect (EAR) vulnerability in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.26, from 10.1.0-M1 through 10.1.60, from 9.0.0.M1 through 9.0.122. The following versions were EOL at the time the CVE was created but are known to be affected: 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 11.0.27, 10.1.61, 9.0.123, which fixes the issue.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Apache | Apache Tomcat | 11.0.0-M1 – 11.0.26; 10.1.0-M1 – 10.1.60; 9.0.0.M1 – 9.0.122; 8.5.0 – 8.5.100; 7.0.0 – 7.0.109 | — | No fix listed | CNA |
- Apache Tomcat VendorApache Affected 11.0.0-M1 – 11.0.26; 10.1.0-M1 – 10.1.60; 9.0.0.M1 – 9.0.122; 8.5.0 – 8.5.100; 7.0.0 – 7.0.109 Fixed in — No fix listed CNA
Remediation
Upgrade Apache Tomcat to 11.0.27, 10.1.61 or 9.0.123, which fix the issue. Red Hat Hardened Images are fixed by RHSA-2026:85926 and RHSA-2026:81365. For Red Hat Enterprise Linux 6, 7, 8, 9 and 10 and JBoss Web Server 5, 6 and 7, the sources list no fixed version.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Red Hat 2 advisories
- RHSA-2026:85926 Released 2026-10-20 · Red Hat rating ImportantRed Hat Hardened Images RPMs bug fix and enhancement update
- Red Hat Hardened Images tomcat10-10.1.61-0.1.hum1@noarch@public-hummingbird-aarch64-rpms, tomcat10-10.1.61-0.1.hum1@noarch@public-hummingbird-s390x-rpms, tomcat10-10.1.61-0.1.hum1@noarch@public-hummingbird-x86_64-rpms +28
- RHSA-2026:81365 Released 2026-10-12 · Red Hat rating ImportantRed Hat Hardened Images RPMs bug fix and enhancement update
- Red Hat Hardened Images tomcat11-11.0.27-0.1.hum1@noarch@public-hummingbird-aarch64-rpms, tomcat11-11.0.27-0.1.hum1@noarch@public-hummingbird-s390x-rpms, tomcat11-11.0.27-0.1.hum1@noarch@public-hummingbird-x86_64-rpms +28
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 6 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 7 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
| Red Hat JBoss Web Server 5 | Affected | No fix yet: Fix deferred |
| Red Hat JBoss Web Server 6 | Affected | No fix yet: Fix deferred |
| Red Hat JBoss Web Server 7 | Affected | No fix yet: Fix deferred |
| Red Hat Hardened Images | Fixed | RHSA-2026:81365, RHSA-2026:85926 |
Not affected: 1 product
- Red Hat Hardened Images
Timeline
- 2026-10-20 Threatist record created from CVE-2026-74049
- 2026-10-20 Alias added: GHSA-2hg3-hfj5-cq2f
- 2026-10-21 Fix available: RHSA-2026:85926 · Red Hat
- 2026-10-21 Fix available: RHSA-2026:81365 · Red Hat
- 2026-10-21 Fix available: Red Hat Hardened Images · Red Hat
- 2026-10-21 CVSS score added · Red Hat
- 2026-10-23 Affected versions changed · Red Hat
- 2026-10-29 CVSS score added · CISA ADP
- 2026-10-29 CISA SSVC decision points changed
References
More Apache vulnerabilities
- TI-2025-18529 Apache Tomcat: Potential RCE and/or information disclosure and/or information corruption with partial PUT KEVCVSS 3.1CRITICAL 10.0
- TI-2024-30292 Apache OFBiz: Confused controller-view authorization logic (forced browsing) KEVCVSS 3.1CRITICAL 9.8
- TI-2024-26062 Apache OFBiz: Unauthenticated endpoint could allow execution of screen rendering code KEVCVSS 3.1CRITICAL 9.8
- TI-2024-21190 Apache OFBiz: Path traversal leading to RCE KEVCVSS 3.1CRITICAL 9.8
- TI-2024-18186 Apache HugeGraph-Server: Command execution in gremlin KEVCVSS 3.1CRITICAL 9.8
- TI-2023-25106 Deserialization of untrusted data in Apache ActiveMQ KEVCVSS 3.1CRITICAL 10.0
Sources
- CVE-2026-74049 · CVE Program
- CVE-2026-74049 · NVD
- FIRST EPSS
- GHSA-2hg3-hfj5-cq2f · GitHub Advisory Database · CC BY 4.0
- CVE-2026-74049 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences