`CVE-2023-41080` Apache Tomcat

Affected software	Apache Tomcat
Severity	6.1 Medium CVSS 3.1
Fixed in	`11.0.0-M11`, `10.1.13`, `9.0.80`, `8.5.93`
Weakness	CWE-601
Published	25 Aug 2023
Updated	12 Nov 2026

Description

URL Redirection to Untrusted Site ('Open Redirect') vulnerability in FORM authentication feature Apache Tomcat.This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.0-M10, from 10.1.0-M1 through 10.0.12, from 9.0.0-M1 through 9.0.79 and from 8.5.0 through 8.5.92. Older, EOL versions may also be affected. The vulnerability is limited to the ROOT (default) web application.

Exploitation status

Proof of concept only

A proof of concept exists, but no reviewed exploit catalogue lists this CVE.

CISA KEV not listed
VulnCheck KEV not listed
CISA Vulnrichment exploitation: none
Indexed PoC 1 indexed Published artifacts you can open, in GitHub PoC; first seen 2023-08-26.
EPSS 6.5% chance in 30 days

Index	Artifact	Stars	First seen
GitHub PoC	sotiak/CVE-2023-41080	11	2023-08-26

Index

Artifact

Stars

First seen

GitHub PoC

sotiak/CVE-2023-41080

2023-08-26

Waratek protection

Mitigation candidate

A kind of vulnerability Waratek's rules address, with exploit code published or exploitation reported. No rule exists and none is planned yet. The decision below says what we found to build a rule from.

Protection none
Action feasible
Review human Researcher
Record active

Decided by	A researcher's recorded decision for this specific CVE
Finding	A researcher set this CVE's status to Mitigation candidate.

Decided by

A researcher's recorded decision for this specific CVE

Finding

A researcher set this CVE's status to Mitigation candidate.

Waratek research note

written 2026-11-13

Written by a Waratek engineer who reviewed this CVE. Their decision sets the status above, ahead of every automated rule except a withdrawal.

Comments

The Open Redirect rule does not currently protect against this CVE.

Affected software and releases

Oracle advisories

Advisory	Type	Quarter	Products Oracle names in its risk matrix
Oracle Critical Patch Update April 2025 ↗	CPU	2025-Q2	Oracle Autonomous Health Framework / Trace File Analyzer (Apache Tomcat) (23.8.0-23.11.0, 24.1.0-24.11.0, 25.1.0, 25.2.0)
Oracle Critical Patch Update April 2024 ↗	CPU	2024-Q2	Oracle Commerce / Workbench (Apache Tomcat) (11.3.2)
Oracle Critical Patch Update October 2023 ↗	CPU	2023-Q4	Oracle Communications / BEServer (Apache Tomcat) (9.0.0-9.0.2) Oracle Communications / BEServer (Apache Tomcat) (9.0.0-9.0.2) Oracle Communications / CMP (Apache Tomcat) (12.6.0.0) Oracle MySQL / Monitoring: General (Apache Tomcat) (8.0.35 and prior)

Advisory

Type

Quarter

Products Oracle names in its risk matrix

Oracle Critical Patch Update April 2025 ↗

CPU

2025-Q2

Oracle Autonomous Health Framework / Trace File Analyzer (Apache Tomcat) (23.8.0-23.11.0, 24.1.0-24.11.0, 25.1.0, 25.2.0)

Oracle Critical Patch Update April 2024 ↗

CPU

2024-Q2

Oracle Commerce / Workbench (Apache Tomcat) (11.3.2)

Oracle Critical Patch Update October 2023 ↗

CPU

2023-Q4

Oracle Communications / BEServer (Apache Tomcat) (9.0.0-9.0.2)
Oracle Communications / BEServer (Apache Tomcat) (9.0.0-9.0.2)
Oracle Communications / CMP (Apache Tomcat) (12.6.0.0)
Oracle MySQL / Monitoring: General (Apache Tomcat) (8.0.35 and prior)

Oracle components and versions

Family	Component	Versions, as Oracle lists them	Read as
Oracle Autonomous Health Framework	Trace File Analyzer (Apache Tomcat)	23.8.0-23.11.0, 24.1.0-24.11.0, 25.1.0, 25.2.0	25.1.0 · 25.2.0
Oracle Commerce	Workbench (Apache Tomcat)	11.3.2	11.3.2
Oracle Communications	BEServer (Apache Tomcat)	9.0.0-9.0.2
Oracle Communications	CMP (Apache Tomcat)	12.6.0.0	12.6.0.0
Oracle MySQL	Monitoring: General (Apache Tomcat)	8.0.35 and prior

Family

Component

Versions, as Oracle lists them

Read as

Oracle Autonomous Health Framework

Trace File Analyzer (Apache Tomcat)

23.8.0-23.11.0, 24.1.0-24.11.0, 25.1.0, 25.2.0

25.1.0 · 25.2.0

Oracle Commerce

Workbench (Apache Tomcat)

11.3.2

Oracle Communications

BEServer (Apache Tomcat)

9.0.0-9.0.2

Oracle Communications

CMP (Apache Tomcat)

12.6.0.0

Oracle MySQL

Monitoring: General (Apache Tomcat)

8.0.35 and prior

Maven packages

Affected and fixed versions, from OSV.dev

Package Introduced Fixed Last affected

org.apache.tomcat:tomcat 11.0.0-M1 11.0.0-M11 unbounded

org.apache.tomcat:tomcat 10.1.0-M1 10.1.13 unbounded

org.apache.tomcat:tomcat 9.0.0-M1 9.0.80 unbounded

org.apache.tomcat:tomcat 8.5.0 8.5.93 unbounded

org.apache.tomcat.embed:tomcat-embed-core 8.5.0 8.5.93 unbounded

org.apache.tomcat.embed:tomcat-embed-core 9.0.0-M1 9.0.80 unbounded

org.apache.tomcat.embed:tomcat-embed-core 10.1.0-M1 10.1.13 unbounded

org.apache.tomcat.embed:tomcat-embed-core 11.0.0-M1 11.0.0-M11 unbounded

org.apache.tomcat:tomcat-catalina 10.1.0-M1 10.1.13 unbounded

org.apache.tomcat:tomcat-catalina 9.0.0-M1 9.0.80 unbounded

org.apache.tomcat:tomcat-catalina 8.5.0 8.5.93 unbounded

Package	Introduced	Fixed	Last affected
`org.apache.tomcat:tomcat`	11.0.0-M1	`11.0.0-M11`	unbounded
`org.apache.tomcat:tomcat`	10.1.0-M1	`10.1.13`	unbounded
`org.apache.tomcat:tomcat`	9.0.0-M1	`9.0.80`	unbounded
`org.apache.tomcat:tomcat`	8.5.0	`8.5.93`	unbounded
`org.apache.tomcat.embed:tomcat-embed-core`	8.5.0	`8.5.93`	unbounded
`org.apache.tomcat.embed:tomcat-embed-core`	9.0.0-M1	`9.0.80`	unbounded
`org.apache.tomcat.embed:tomcat-embed-core`	10.1.0-M1	`10.1.13`	unbounded
`org.apache.tomcat.embed:tomcat-embed-core`	11.0.0-M1	`11.0.0-M11`	unbounded
`org.apache.tomcat:tomcat-catalina`	10.1.0-M1	`10.1.13`	unbounded
`org.apache.tomcat:tomcat-catalina`	9.0.0-M1	`9.0.80`	unbounded
`org.apache.tomcat:tomcat-catalina`	8.5.0	`8.5.93`	unbounded

Products and versions

5 products, 26 version entries

Source	Vendor	Product	Scheme	Affected versions
nvd	apache	tomcat	generic	≥ 8.5.0 and ≤ 8.5.92 · ≥ 9.0.0 and ≤ 9.0.79 · ≥ 10.1.0 and ≤ 10.1.12 · 11.0.0:milestone1 · 11.0.0:milestone10 · 11.0.0:milestone2 · 11.0.0:milestone3 · 11.0.0:milestone4 · 11.0.0:milestone5 · 11.0.0:milestone6 · 11.0.0:milestone7 · 11.0.0:milestone8 · 11.0.0:milestone9
nvd	debian	debian linux	generic	10.0 · 11.0
osv	org.apache.tomcat	tomcat	generic	≥ 8.5.0 and ＜ 8.5.93 · ≥ 9.0.0 and ＜ 9.0.80 · ≥ 10.1.0 and ＜ 10.1.13 · ≥ 11.0.0 and ＜ 11.0.0
osv	org.apache.tomcat	tomcat-catalina	generic	≥ 8.5.0 and ＜ 8.5.93 · ≥ 9.0.0 and ＜ 9.0.80 · ≥ 10.1.0 and ＜ 10.1.13
osv	org.apache.tomcat.embed	tomcat-embed-core	generic	≥ 8.5.0 and ＜ 8.5.93 · ≥ 9.0.0 and ＜ 9.0.80 · ≥ 10.1.0 and ＜ 10.1.13 · ≥ 11.0.0 and ＜ 11.0.0

Source

Vendor

Product

Scheme

Affected versions

nvd

apache

tomcat

generic

≥ 8.5.0 and ≤ 8.5.92 · ≥ 9.0.0 and ≤ 9.0.79 · ≥ 10.1.0 and ≤ 10.1.12 · 11.0.0:milestone1 · 11.0.0:milestone10 · 11.0.0:milestone2 · 11.0.0:milestone3 · 11.0.0:milestone4 · 11.0.0:milestone5 · 11.0.0:milestone6 · 11.0.0:milestone7 · 11.0.0:milestone8 · 11.0.0:milestone9

nvd

debian

debian linux

generic

10.0 · 11.0

osv

org.apache.tomcat

tomcat

generic

≥ 8.5.0 and ＜ 8.5.93 · ≥ 9.0.0 and ＜ 9.0.80 · ≥ 10.1.0 and ＜ 10.1.13 · ≥ 11.0.0 and ＜ 11.0.0

osv

org.apache.tomcat

tomcat-catalina

generic

≥ 8.5.0 and ＜ 8.5.93 · ≥ 9.0.0 and ＜ 9.0.80 · ≥ 10.1.0 and ＜ 10.1.13

osv

org.apache.tomcat.embed

tomcat-embed-core

generic

≥ 8.5.0 and ＜ 8.5.93 · ≥ 9.0.0 and ＜ 9.0.80 · ≥ 10.1.0 and ＜ 10.1.13 · ≥ 11.0.0 and ＜ 11.0.0

References

URL	Tags
https://github.com/apache/tomcat/commit/4998ad745b67edeadefe541c94ed029b53933d3b	WEB
https://github.com/apache/tomcat/commit/77c0ce2d169efa248b64b992e547aad549ec906b	WEB
https://github.com/apache/tomcat/commit/bb4624a9f3e69d495182ebfa68d7983076407a27	WEB
https://github.com/apache/tomcat/commit/e3703c9abb8fe0d5602f6ba8a8f11d4b6940815a	WEB
https://github.com/apache/tomcat	PACKAGE
https://lists.apache.org/thread/71wvwprtx2j2m54fovq9zr7gbm2wow2f	WEB
https://lists.debian.org/debian-lts-announce/2023/10/msg00020.html	WEB
https://security.netapp.com/advisory/ntap-20230921-0006	WEB
https://www.debian.org/security/2023/dsa-5521	WEB
https://www.debian.org/security/2023/dsa-5522	WEB

URL

Timeline

Published	2023-08-25	By the CVE Program.
NVD record modified	2026-06-17	NVD's own last-modified date for this record.
Last VRT activity	2026-11-12	Most recent commit touching this CVE's classification, patch or rule file.
Classification created	2026-11-13	First commit adding this CVE's research note.

Published

2023-08-25

By the CVE Program.

NVD record modified

2026-06-17

NVD's own last-modified date for this record.

Last VRT activity

2026-11-12

Most recent commit touching this CVE's classification, patch or rule file.

Classification created

2026-11-13

First commit adding this CVE's research note.

How VRT decided (4 of 24 rules ran)

4 of 24 rules ran. The rest didn't run because an earlier rule had already settled the CVE.

# Rule Outcome Status Detail

identity: Does this identifier describe a vulnerability at all? the first rule that matches decides

1 rejected no match CVE Program withdrawal of this identifier

scope: Is it a vulnerability Waratek protects? the first rule that matches decides

2 armr-patch-file no match An ARMR patch file on disk for this CVE

3 armr-secure-rule-file no match An ARMR security-rule template on disk for this CVE

4 manual-classification decided it matched Mitigation candidate A researcher set this CVE's status to Mitigation candidate.

5 manual classification not reached Manual classification of this CVE in the legacy dataset

6 non-java-upstream not reached A root cause in non-Java code: an OS kernel, a C library, or a bundled runtime

7 oracle-component not reached The defect being in a component of a tracked product the agent does not reach: JavaFX, the Java SE installer, the JInitiator browser plug-in, the native WebLogic proxy plug-in, or a native part of Oracle Application Server or Collaboration Suite (HTTP Server, Web Cache, Internet Directory, mail and calendar servers). Oracle gives these no CPE of their own and names them only in the description.

8 java-client-side not reached Oracle's own risk-matrix note saying the CVE is reached only through untrusted code in the Java sandbox (applets, Web Start) or only through a client installation of Java, so a server running its own trusted code is not exposed

9 osv-maven not reached An OSV.dev record of this CVE affecting a package published to Maven Central. When every such package is one business applications do not use (Minecraft mods and launchers, Fastjson) and no tracked product is named by CPE, it settles the CVE as Outside Waratek scope instead

10 cna-maven-package not reached An affected Maven artifact named by the CNA itself

11 known-cpe-product not reached An NVD CPE naming a product ARMR tracks

12 cna-cpe-product not reached A CPE the CNA published naming a tracked product. Oracle publishes these on advisory day, months before NVD.

13 oracle-advisory-family not reached A tracked product family named in Oracle's own risk matrix. CPE cannot carry a suite name, only a module.

14 cna-named-product not reached A tracked product named in words by the CVE's own CNA, on a record with no CPE yet. Apache and Eclipse publish these on advisory day, before NVD adds CPE data.

15 non-deployable-product not reached The only affected product being a sealed appliance image, where Java runs but no -javaagent can be attached

16 unmatched-product not reached No tracked product matched above, and none present at all

disposition: What do we do about one that is? every rule runs

17 patch-hint not reached A reference pointing at the upstream fix: a commit, a PR, a Red Hat bug

18 open-source-maven not reached The affected package being open source on Maven, so the fix can be read

19 poc-derivable not reached An indexed exploit clearing the evidence bar to reverse-engineer, where there is no source to read

20 no-exploit not reached Nothing to build a rule from yet: no published exploit, no CISA record of exploitation and no source-level change to read

21 secure-rule-match not reached A vulnerability class already blocked by an ARMR security rule

22 exploited-no-fix-or-poc not reached Somebody exploiting this CVE (a CISA or VulnCheck KEV listing, or a CISA verdict of active exploitation), with no fix, source code or PoC to build a rule from

23 below-action-threshold not reached Medium or Low severity, no CISA or VulnCheck KEV listing, no PoC clearing the evidence bar, no CISA verdict, no Oracle advisory

24 no-exploit-published not reached Exploit code for this candidate, published in a reviewed catalogue or a GitHub repository with 5 or more stars, or in use per CISA or VulnCheck; not only a CISA verdict, a forecast, or nothing at all

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