Staging Environment: Content and features may be unstable or change without notice.
Advisory details: github_osv / GHSA-8mc5-53m5-3qj2
Advisory ID github_osv/GHSA-8mc5-53m5-3qj2
Aliases CVE-2026-32990
Summary Apache Tomcat has an Improper Input Validation vulnerability Improper Input Validation vulnerability in Apache Tomcat due to an incomplete fix of CVE-2025-66614. This issue affects Apache Tomcat: from 11.0.15 through 11.0.19, from 10.1.50 through 10.1.52, from 9.0.113 through 9.0.115. Users are recommended to upgrade to version 11.0.20, 10.1.53 or 9.0.116, which fix the issue.
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (1)
CWE-20 Improper Input Validation
System Score Found at
cvssv3.1 5.3 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-8mc5-53m5-3qj2/GHSA-8mc5-53m5-3qj2.json
cvssv4 6.9 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-8mc5-53m5-3qj2/GHSA-8mc5-53m5-3qj2.json
generic_textual MODERATE
Reference id Reference type URL
https://github.com/apache/tomcat
https://github.com/apache/tomcat/commit/021d1f833e38b683a44688f7b28f1f27e8e37c36
https://github.com/apache/tomcat/commit/4d0615a5c718c260d6d4e0b944a050f09a490c02
https://github.com/apache/tomcat/commit/95f7778248cac46d03e6af04de9c72a598be3a53
https://tomcat.apache.org/security-10.html#Fixed_in_Apache_Tomcat_10.1.53
https://tomcat.apache.org/security-11.html#Fixed_in_Apache_Tomcat_11.0.20
https://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.116
https://www.herodevs.com/vulnerability-directory/cve-2026-32990
1nl9zqft0ksqlhlkd3j4obyjz1ghoyn7 Advisory https://lists.apache.org/thread/1nl9zqft0ksqlhlkd3j4obyjz1ghoyn7
CVE-2026-32990 https://nvd.nist.gov/vuln/detail/CVE-2026-32990
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-8mc5-53m5-3qj2/GHSA-8mc5-53m5-3qj2.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-8mc5-53m5-3qj2/GHSA-8mc5-53m5-3qj2.json
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

There are no SSVC decisions available.