Improper authentication in LINE Corporation Armeria
Priority MEDIUM 49CWE-287Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-287.
Summary
A vulnerability has been identified in armeria-saml versions less than 1.27.2, allowing the use of malicious SAML messages to bypass authentication. All users who rely on armeria-saml older than version 1.27.2 must upgrade to 1.27.2 or later.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00834 57th percentileScored 2026-11-07
Fix Fixed Armeria (LINE Corporation): 1.27.2com.linecorp.armeria:armeria-saml (Maven): 1.27.2
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| LINE Corporation | Armeria | 0.69.0 to before 1.27.2 | 1.27.2 | Patch available | CNA |
| — | com.linecorp.armeria:armeria-saml (Maven) | before 1.27.2 | 1.27.2 | Patch available | GHSA-4m6j-23p2-8c54 |
- Armeria VendorLINE Corporation Affected 0.69.0 to before 1.27.2 Fixed in 1.27.2 Patch available CNA
- com.linecorp.armeria:armeria-saml (Maven) Vendor— Affected before 1.27.2 Fixed in 1.27.2 Patch available GHSA-4m6j-23p2-8c54
Remediation
- Fix · CNA Armeria (LINE Corporation) Fixed in 1.27.2
- Fix · GHSA-4m6j-23p2-8c54 com.linecorp.armeria:armeria-saml (Maven) Fixed in 1.27.2 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2024-1735
- 2026-10-03 Alias added: GHSA-4m6j-23p2-8c54
References
Advisory 2
Other 4
- https://github.com/line/armeria/commit/b2aa9f49b46a7b0e03d8b8d753809cd1e8e2016c
- https://github.com/line/armeria
- https://github.com/line/armeria/blob/0efc776988d71be4da6e506ec8a33c2b7b43f567/saml/src/main/java/com/linecorp/armeria/server/saml/SamlMessageUtil.java#L160-L163
- https://github.com/line/armeria/releases/tag/armeria-1.27.2
More LINE Corporation vulnerabilities
- TI-2023-05112 Improper certificate validation in LINE client for iOS CVSS 3.1CRITICAL 9.8
- TI-2024-01060 Cross-site scripting in LINE Corporation Central Dogma CVSS 3.1CRITICAL 9.3
- TI-2023-19873 Paths contain matrix variables bypass decorators CVSS 3.1HIGH 7.5
- TI-2022-19973 LINE client for iOS before 12.17.0 might be crashed by sharing an invalid shared key of e2ee in group chat. CVSS 3.1HIGH 7.5
- TI-2021-15992 Missing authorization in LINE Corporation Central Dogma CVSS 3.1HIGH 8.8
- TI-2019-04299 Integer overflow in LINE CVSS 3.1HIGH 7.8
Sources
- CVE-2024-1735 · CVE Program
- CVE-2024-1735 · NVD
- FIRST EPSS
- GHSA-4m6j-23p2-8c54 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences