VulnerableCode Package Details - pkg:apache/tomcat@9.0.35

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Vulnerability	Summary	Fixed by
VCID-46bv-6b7y-3bca Aliases: CVE-2020-11996 GHSA-53hp-jpwq-2jgq	A specially crafted sequence of HTTP/2 requests sent to Apache Tomcat 10.0.0-M1 to 10.0.0-M5, 9.0.0.M1 to 9.0.35 and 8.5.0 to 8.5.55 could trigger high CPU usage for several seconds. If a sufficient number of such requests were made on concurrent HTTP/2 connections, the server could become unresponsive.	9.0.36 Affected by 2 other vulnerabilities. This version is affected by these other vulnerabilities: {{ fixed_by_vuln.vulnerability_id }} {{ fixed_by_vuln.vulnerability_id }} 10.0.0-M6 Affected by 2 other vulnerabilities. This version is affected by these other vulnerabilities: {{ fixed_by_vuln.vulnerability_id }} {{ fixed_by_vuln.vulnerability_id }}
VCID-6pm1-byhk-eqfg Aliases: CVE-2022-23181 GHSA-9f3j-pm6f-9fm5	The fix for bug CVE-2020-9484 introduced a time of check, time of use vulnerability into Apache Tomcat 10.1.0-M1 to 10.1.0-M8, 10.0.0-M5 to 10.0.14, 9.0.35 to 9.0.56 and 8.5.55 to 8.5.73 that allowed a local attacker to perform actions with the privileges of the user that the Tomcat process is using. This issue is only exploitable when Tomcat is configured to persist sessions using the FileStore.	9.0.58 Affected by 0 other vulnerabilities. 10.0.16 Affected by 0 other vulnerabilities. 10.1.0-M10 Affected by 0 other vulnerabilities.

Vulnerability

Summary

Fixed by

VCID-46bv-6b7y-3bca
Aliases:
CVE-2020-11996
GHSA-53hp-jpwq-2jgq

A specially crafted sequence of HTTP/2 requests sent to Apache Tomcat 10.0.0-M1 to 10.0.0-M5, 9.0.0.M1 to 9.0.35 and 8.5.0 to 8.5.55 could trigger high CPU usage for several seconds. If a sufficient number of such requests were made on concurrent HTTP/2 connections, the server could become unresponsive.

9.0.36
Affected by 2 other vulnerabilities.

10.0.0-M6
Affected by 2 other vulnerabilities.

VCID-6pm1-byhk-eqfg
Aliases:
CVE-2022-23181
GHSA-9f3j-pm6f-9fm5

The fix for bug CVE-2020-9484 introduced a time of check, time of use vulnerability into Apache Tomcat 10.1.0-M1 to 10.1.0-M8, 10.0.0-M5 to 10.0.14, 9.0.35 to 9.0.56 and 8.5.55 to 8.5.73 that allowed a local attacker to perform actions with the privileges of the user that the Tomcat process is using. This issue is only exploitable when Tomcat is configured to persist sessions using the FileStore.

9.0.58
Affected by 0 other vulnerabilities.

10.0.16
Affected by 0 other vulnerabilities.

10.1.0-M10
Affected by 0 other vulnerabilities.

Vulnerability	Summary	Aliases
VCID-66kh-s6cr-tqf9	When using Apache Tomcat versions 10.0.0-M1 to 10.0.0-M4, 9.0.0.M1 to 9.0.34, 8.5.0 to 8.5.54 and 7.0.0 to 7.0.103 if a) an attacker is able to control the contents and name of a file on the server; and b) the server is configured to use the PersistenceManager with a FileStore; and c) the PersistenceManager is configured with sessionAttributeValueClassNameFilter="null" (the default unless a SecurityManager is used) or a sufficiently lax filter to allow the attacker provided object to be deserialized; and d) the attacker knows the relative file path from the storage location used by FileStore to the file the attacker has control over; then, using a specifically crafted request, the attacker will be able to trigger remote code execution via deserialization of the file under their control. Note that all of conditions a) to d) must be true for the attack to succeed.	CVE-2020-9484 GHSA-344f-f5vg-2jfj

Vulnerability

Summary

Aliases

VCID-66kh-s6cr-tqf9

When using Apache Tomcat versions 10.0.0-M1 to 10.0.0-M4, 9.0.0.M1 to 9.0.34, 8.5.0 to 8.5.54 and 7.0.0 to 7.0.103 if a) an attacker is able to control the contents and name of a file on the server; and b) the server is configured to use the PersistenceManager with a FileStore; and c) the PersistenceManager is configured with sessionAttributeValueClassNameFilter="null" (the default unless a SecurityManager is used) or a sufficiently lax filter to allow the attacker provided object to be deserialized; and d) the attacker knows the relative file path from the storage location used by FileStore to the file the attacker has control over; then, using a specifically crafted request, the attacker will be able to trigger remote code execution via deserialization of the file under their control. Note that all of conditions a) to d) must be true for the attack to succeed.

CVE-2020-9484
GHSA-344f-f5vg-2jfj

Date	Actor	Action	Vulnerability	Source	VulnerableCode Version
2026-04-01T12:38:08.485503+00:00	Apache Tomcat Importer	Fixing	VCID-66kh-s6cr-tqf9	https://tomcat.apache.org/security-9.html	38.0.0
2026-04-01T12:38:08.453143+00:00	Apache Tomcat Importer	Affected by	VCID-46bv-6b7y-3bca	https://tomcat.apache.org/security-9.html	38.0.0
2026-04-01T12:38:08.019049+00:00	Apache Tomcat Importer	Affected by	VCID-6pm1-byhk-eqfg	https://tomcat.apache.org/security-9.html	38.0.0