Security Resilience

CVE-2023-41080

Open Redirect in Apache Tomcat 8.5.0 – 8.5.92

Open Redirect
Published
25 August 2023
Modified
07 August 2025
Patch / advisory
View advisory
CVSS Score v3.1 6.1
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS Score 0.065 94th percentile
Risk Priority 57 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2023-41080 is a medium-severity Open Redirect (CWE-601) vulnerability in Apache Tomcat. Its CVSS base score is 6.1 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Data Obfuscation (T1001); ranked in the top 6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

CVE-2023-41080 is an open redirect vulnerability (CWE-601) in the FORM authentication feature of Apache Tomcat. It affects the ROOT web application in versions 11.0.0-M1 through 11.0.0-M10, 10.1.0-M1 through 10.0.12, 9.0.0-M1 through 9.0.79, and 8.5.0 through 8.5.92, with older end-of-life releases also potentially impacted. The issue carries a CVSS 3.1 score of 6.1.

An unauthenticated remote attacker can supply a crafted URL that triggers an open redirect during FORM-based login handling, allowing the victim to be sent to an untrusted site under attacker control and enabling phishing or further client-side attacks.

Advisories from Apache, Debian, and NetApp recommend upgrading Tomcat to fixed releases and note that the vulnerability is confined to the default ROOT application; the referenced lists detail the specific patched versions and backports available for supported branches.

EPSS for this CVE rose from a low baseline to a peak of 0.1366 (current value 0.1159), indicating emerging exploitation interest after disclosure.

OWASP Top 10 for Web (2025)

A01:2025 Broken Access Control

EU & UK References

Vulnerability Data

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…

more

be affected. The vulnerability is limited to the ROOT (default) web application.

CWE(s)
CWE-601

Related Threats

MITRE ATT&CK Enterprise Techniques

T1001 Data Obfuscation Command And Control
Adversaries may obfuscate command and control traffic to make it more difficult to detect.
attack.mitre.org →
T1003.001 LSASS Memory Credential Access
Adversaries may attempt to access credential material stored in the process memory of the Local Security Authority Subsystem Service (LSASS).
attack.mitre.org →
T1003.002 Security Account Manager Credential Access
Adversaries may attempt to extract credential material from the Security Account Manager (SAM) database either through in-memory techniques or through the Windows Registry where the SAM database is stored.
attack.mitre.org →
T1003.005 Cached Domain Credentials Credential Access
Adversaries may attempt to access cached domain credentials used to allow authentication to occur in the event a domain controller is unavailable.
attack.mitre.org →
T1014 Rootkit Stealth
Adversaries may use rootkits to hide the presence of programs, files, network connections, services, drivers, and other system components.
attack.mitre.org →
T1016.002 Wi-Fi Discovery Discovery
Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2026-25854Same product: Apache Tomcat
CVE-2023-42795Same product: Apache Tomcat
CVE-2023-45648Same product: Apache Tomcat
CVE-2024-52316Same product: Apache Tomcat
CVE-2026-40961Same vendor: Apache
CVE-2026-44915Same vendor: Apache
CVE-2026-48895Same vendor: Apache
CVE-2026-48589Same vendor: Apache
CVE-2023-42502Same vendor: Apache
CVE-2023-46750Same vendor: Apache

Affected Assets

apache
tomcat
11.0.0 · 8.5.0 — 8.5.92 · 9.0.0 — 9.0.79 · 10.1.0 — 10.1.12
debian
debian linux
10.0, 11.0

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V3.7.2

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

AT-2 Literacy Training and Awareness
addresses: CWE-601

Security awareness includes verifying URLs and avoiding untrusted redirects that lead to malicious sites.

SI-10 Information Input Validation
addresses: CWE-601

Validates redirect targets and URLs to ensure they conform to allowed destinations.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 partial match
blocks

Secure SDLC practices directly require input validation and untrusted-redirect controls that prevent CWE-601.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.5.14 Information transfer partial match
removes
A.5.15 Access control partial match
removes
A.5.16 Identity management partial match
removes
A.5.17 Authentication information partial match
removes
A.5.18 Access rights partial match
removes
A.8.10 Information deletion partial match
removes

References