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7546 articles · 236452 vulns · 36/41 feeds (7d)
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9.1
CVE-2026-59083EXPLOITEDPATCHED
apache · tomcat

Apache Tomcat: Incorrect URL decoding in RewriteValve may allow security control bypass

Description

Improper Handling of URL Encoding (Hex Encoding) vulnerability in Apache Tomcat's rewrite valve allowed security constraint bypass for some configurations. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.23, from 10.1.0-M1 through 10.1.56, from 9.0.0.M1 through 9.0.119, from 8.5.0 through 8.5.100. Other versions that have reached end of support may also be affected. Users are recommended to upgrade to version 11.0.24, 10.1.57 or 9.0.120, which fix the issue.

Affected Products

VendorProductVersions
apachetomcat11.0.0-M1, 10.1.0-M1, 9.0.0.M1, 8.5.0, 10.1.57, 9.0.120, 11.0.24

Also Affects

Downstream vendors/products affected by this vulnerability

VendorProductSourceConfidence
apachetomcatcert_advisory90%
ibmqradar siemcert_advisory90%

References

  • https://lists.apache.org/thread/3g63zos2gkjo5vgnrk8kxmosv47w6wbq(vendor-advisory)

Related News (8 articles)

Tier B
CERT-FR27d ago
Multiples vulnérabilités dans les produits IBM (18 septembre 2026)
→ No new info (linked only)
Tier B
CERT-FR34d ago
Multiples vulnérabilités dans les produits IBM (11 septembre 2026)
→ No new info (linked only)
Tier B
CERT-FR48d ago
Multiples vulnérabilités dans les produits IBM (28 août 2026)
→ No new info (linked only)
Tier B
BSI Advisories49d ago
[NEU] [hoch] IBM QRadar SIEM: Mehrere Schwachstellen
→ No new info (linked only)
Tier B
CERT-FR92d ago
Multiples vulnérabilités dans Apache Tomcat (15 juillet 2026)
→ No new info (linked only)
Tier B
BSI Advisories93d ago
[NEU] [mittel] Apache Tomcat: Mehrere Schwachstellen
→ No new info (linked only)
Tier C
oss-security93d ago
CVE-2026-59083: Apache Tomcat: Incorrect URL decoding in RewriteValve may allow security control bypass
→ No new info (linked only)
Tier C
VulDB93d ago
CVE-2026-59083 | Apache Tomcat up to 11.0.23/10.1.56/9.0.119/8.5.100 Rewrite Valve encoding error
→ No new info (linked only)

Discussion (0)

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CVSS 3.19.1 CRITICAL
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CISA KEV❌ No
Actively exploited✅ Yes
Patch available
11.0.24
CWECWE-177
PublishedJul 14, 2026
Last enriched92d agov4
Tags
CVE-2026-59083
Trending Score2
Source articles8
Independent4
Info Completeness9/14
Missing: epss, kev, exploit, iocs, mitre_attack

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Verification

State: unverified
Confidence: 0%

Vulnerability Timeline

CVE Published
Jul 14, 2026
Discovered by ZDM
Jul 14, 2026
Updated: severity, patchAvailable
Jul 14, 2026
Updated: description, severity, activelyExploited, tags
Jul 14, 2026
Actively Exploited
Jul 14, 2026
Patch Available
Jul 14, 2026
Updated: affectedVersions
Jul 15, 2026

Version History

v4
Last enriched 92d ago
v4Tier B92d ago

Updated affected versions to include 10.1.57, 9.0.120, and 11.0.24, and confirmed that the patch is now available.

affectedVersions
via CERT-FR
v3Tier C93d ago

Updated severity to HIGH, added CVE-2026-59083, and clarified exploit availability.

descriptionseverityactivelyExploitedtags
via VulDB
v2Tier C93d ago

Updated severity from NONE to LOW and specified the fixed version as 11.0.24.

severitypatchAvailable
via oss-security
v193d ago

Initial creation