CVE-2026-25854 | Apache Tomcat up to 7.0.108/8.5.100/9.0.115/10.1.52/11.0.18 redirect

VDB-356659 · CVE-2026-25854 · GCVE-0-2026-25854 APACHE TOMCAT UP TO 7.0.108/8.5.100/9.0.115/10.1.52/11.0.18 REDIRECT HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 3.4 $0-$5k 0.53 Summaryinfo A vulnerability identified as problematic has been detected in Apache Tomcat up to 7.0.108/8.5.100/9.0.115/10.1.52/11.0.18. The affected element is an unknown function. This manipulation causes redirect. The identification of this vulnerability is CVE-2026-25854. It is possible to initiate the attack remotely. There is no exploit available. You should upgrade the affected component. Detailsinfo A vulnerability was found in Apache Tomcat up to 7.0.108/8.5.100/9.0.115/10.1.52/11.0.18. It has been declared as problematic. Affected by this vulnerability is some unknown functionality. The manipulation with an unknown input leads to a redirect vulnerability. The CWE definition for the vulnerability is CWE-601. A web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks. As an impact it is known to affect integrity. The summary by CVE is: Occasional URL redirection to untrusted Site ('Open Redirect') vulnerability in Apache Tomcat via the LoadBalancerDrainingValve. 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.M23 through 9.0.115, from 8.5.30 through 8.5.100. Other, unsupported versions may also be affected Users are recommended to upgrade to version 11.0.20, 10.1.53 or 9.0.116, which fix the issue. The weakness was shared by Gregk4Sec. It is possible to read the advisory at lists.apache.org. This vulnerability is known as CVE-2026-25854 since 02/06/2026. The exploitation appears to be easy. The attack can be launched remotely. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/09/2026). The attack technique deployed by this issue is T1204.001 according to MITRE ATT&CK. Upgrading to version 9.0.116, 10.1.53 or 11.0.20 eliminates this vulnerability. Productinfo Type Application Server Software Vendor Apache Name Tomcat Version 7.0.108 8.0 8.1 8.2 8.3 8.4 8.5.100 9.0.115 10.1.0 10.1.1 10.1.2 10.1.3 10.1.4 10.1.5 10.1.6 10.1.7 10.1.8 10.1.9 10.1.10 10.1.11 10.1.12 10.1.13 10.1.14 10.1.15 10.1.16 10.1.17 10.1.18 10.1.19 10.1.20 10.1.21 10.1.22 10.1.23 10.1.24 10.1.25 10.1.26 10.1.27 10.1.28 10.1.29 10.1.30 10.1.31 10.1.32 10.1.33 10.1.34 10.1.35 10.1.36 10.1.37 10.1.38 10.1.39 10.1.40 10.1.41 10.1.42 10.1.43 10.1.44 10.1.45 10.1.46 10.1.47 10.1.48 10.1.49 10.1.50 10.1.51 10.1.52 11.0.0 11.0.1 11.0.2 11.0.3 11.0.4 11.0.5 11.0.6 11.0.7 11.0.8 11.0.9 11.0.10 11.0.11 11.0.12 11.0.13 11.0.14 11.0.15 11.0.16 11.0.17 11.0.18 License open-source Website Vendor: https://www.apache.org/ CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 3.5 VulDB Meta Temp Score: 3.4 VulDB Base Score: 3.5 VulDB Temp Score: 3.4 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Redirect CWE: CWE-601 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: Tomcat 9.0.116/10.1.53/11.0.20 Timelineinfo 02/06/2026 CVE reserved 04/09/2026 +61 days Advisory disclosed 04/09/2026 +0 days VulDB entry created 04/09/2026 +0 days VulDB entry last update Sourcesinfo Vendor: apache.org Advisory: lists.apache.org Researcher: Gregk4Sec Status: Confirmed CVE: CVE-2026-25854 (🔒) GCVE (CVE): GCVE-0-2026-25854 GCVE (VulDB): GCVE-100-356659 Entryinfo Created: 04/09/2026 22:01 Changes: 04/09/2026 22:01 (56) Complete: 🔍 Cache ID: 99:E74:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸