Search/CVE-2021-25122
● CVE — High

CVE-2021-25122

Vendordebian, oracle, apacheProductdebian linux, agile product lifecycle management, tomcat, communications instant messaging server, managed file transfer, agile plm, mysql enterprise monitor, database, instantis enterprisetrack, siebel ui framework, communications cloud native core policy, communications cloud native core security edge protection proxy, graph server and clientDiscoveredMar 1, 2021UpdatedAug 25, 2026

When responding to new h2c connection requests, Apache Tomcat versions 10.0.0-M1 to 10.0.0, 9.0.0.M1 to 9.0.41 and 8.5.0 to 8.5.61 could duplicate request headers and a limited amount of request body from one request to another meaning user A and user B could both see the results of user A's request.

CVSS v3.1
7.5 HIGH
EPSS
18.1%
probability of exploitation in 30 days
CISA KEV
Not listed
no confirmed exploitation reported
News coverage
0
sources referencing this CVE
Related IOCs
0
seen in the same coverage
Timeline
disclosure → media coverage
Mar 1, 2021
Disclosure — published as a CVE record. · last revised by NVD Aug 25, 2026