CVE-2024-1143: Central Dogma Authentication Bypass Vulnerability via Session Leakage

Should you act?

Critical and remotely reachable

No known exploitation yet, but it is network-reachable without credentials. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.

• No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
• EPSS 0.5%, percentile 41: FIRST’s model estimates a 0.5% chance of exploitation activity in the next 30 days, higher than 41% of all scored CVEs (low). EPSS is a probability, not a verdict.
• Needs a user to click or open something. Phishing makes that realistic, but it is not wormable.
• Only applies if your dependency tree includes com.linecorp.centraldogma:centraldogma-server (Maven) < 0.64.1, fixed in 0.64.1. Check your lockfile, including transitive dependencies.

What it is

Central Dogma versions prior to 0.64.1 is vulnerable to Cross-Site Scripting (XSS), which could allow for the leakage of user sessions and subsequent authentication bypass.

From the GitHub advisory

Vulnerability Overview A vulnerability has been identified in Central Dogma versions prior to 0.64.1, allowing for the leakage of user sessions and subsequent authentication bypass. The issue stems from a Cross-Site Scripting (XSS) attack vector that targets the RelayState of Security Assertion Markup Language (SAML).

Impact Successful exploitation of this vulnerability enables malicious actors to leak user sessions, leading to the compromise of authentication mechanisms. This, in turn, can facilitate unauthorized access to sensitive resources.

Patches This vulnerability is addressed and resolved in Central Dogma version 0.64.1 Users are strongly encouraged to upgrade to this version or later to mitigate the risk associated with the authentication bypass.

Workarounds No viable workarounds are currently available for this vulnerability. It is recommended to apply the provided patch promptly.

References - OASIS SAML v2.0 Errata 05 - OWASP XSS Prevention Cheat Sheet

Weakness type: CWE-79.

Product: com.linecorp.centraldogma:centraldogma-server (Maven) · Assigned by: LINE · Published: 2024-02-02

Affected and fixed versions

Severity scores

• Attack vector: network (remotely reachable)
• Attack complexity: low
• Privileges required: none (no login)
• User interaction: required (a user must click/open something)
• Scope: changed (can affect other components)

CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.

Exploitation and urgency

• CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
• CISA SSVC assessment: exploitation none, automatable no, technical impact partial.
• FIRST EPSS (model of 2026-10-21): 0.49% probability of exploitation activity in the next 30 days; percentile 41.

Timeline

• 2024-02-02 — CVE record published by LINE
• 2024-02-02 — GitHub-reviewed advisory GHSA-34q3-p352-c7q8 published (critical)
• 2025-06-03 — CVE record last updated

Sources and references

Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.

Vulnerability records

1. GitHub Advisory GHSA-34q3-p352-c7q8 github.com
2. CVE.org record CVE-2024-1143 cve.org
3. NVD entry CVE-2024-1143 nvd.nist.gov

Other references from the CVE record and advisory

1. github.com github.com
2. github.com github.com

Critical Maven advisories · Today’s Security Digest