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Public proof of conceptFix available

CVE-2023-34478

A public proof of concept exists; no exploitation attested.

  • Published2023-07-24
  • Fixed in2.0.0-alpha-3 · 1.12.0
  • WeaknessCWE-22

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Apache Shiro, before 1.12.0 or 2.0.0-alpha-3, may be susceptible to a path traversal attack that results in an authentication bypass when used together with APIs or other web frameworks that route requests based on non-normalized requests. Mitigation: Update to Apache Shiro 1.12.0+ or 2.0.0-alpha-3+

Timeline

dates in UTC
  1. 2023-07-2419:15CVE publishedNVD

Versions per branch

OSV · NVD · CISA-ADP
Apache shiro
BranchAffectedFixed in
2.0≥ 2.0.0-alpha-1, < 2.0.0-alpha-32.0.0-alpha-3
1.12< 1.12.01.12.0
2.0= 2.0.0no fix published
2.0= 2.0.0alpha1no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As apache, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • Apache Software Foundation Apache Shiroother versions: not affected
    Affected
    • < 1.12.0fixed in 1.12.0semver
    • < 2.0.0-alpha-3fixed in 2.0.0-alpha-3semver

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2023-07-24

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • shiroUbuntu:Pro:24.04:LTSall versions · fixed in 1.3.2-5ubuntu0.24.04.1~esm1
  • shiroUbuntu:Pro:18.04:LTSall versions · no fixed version listed
  • shiroUbuntu:Pro:16.04:LTSall versions · fixed in 1.2.4-1ubuntu0.1~esm2
  • shiroUbuntu:22.04:LTSall versions · no fixed version listed
  • shiroUbuntu:20.04:LTSall versions · no fixed version listed
  • shiroDebian:14all versions · no fixed version listed
  • shiroDebian:13all versions · no fixed version listed
  • shiroDebian:12all versions · no fixed version listed

Full record on NVD

Fix

  1. Update Apache shiro to 2.0.0-alpha-3 · 1.12.0

Detection

read 2026-11-01 01:02 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2023-07-24
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-pmhc-2g4f-85cg

Frequently asked questions

What is CVE-2023-34478?

Apache Shiro, before 1.12.0 or 2.0.0-alpha-3, may be susceptible to a path traversal attack that results in an authentication bypass when used together with APIs or other web frameworks that route requests based on non-normalized requests. Mitigation: Update to Apache Shiro 1.12.0+ or 2.0.0-alpha-3+

Is CVE-2023-34478 actively exploited?

Active exploitation of CVE-2023-34478 has not been confirmed. Its EPSS score was 2.1% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2023-34478?

CVE-2023-34478 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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Sources for this record