Skip to content
Fencer Vulns
critical 9.1

CVE-2024-1735 json

Armeria SAML authentication bypass due to missing validation on unsigned SAML messages

published 2024-02-26 2 y ago modified 2026-07-08 4 mo ago also GHSA-4m6j-23p2-8c54 , EUVD-2024-0511

cvss
9.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 57%
public exploits
0
none known

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.

Patch / fix

  • maven com.linecorp.armeria:armeria-saml 1.27.2
  • LINE Corporation Armeria 1.27.2
  • linecorp armeria 1.27.2

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
2 y ago

Exploit prediction

0.83% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
GitHub 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected packages

ecosystem package affected fixed in
maven com.linecorp.armeria:armeria-saml
<1.27.2
1.27.2

Affected products

  • LINE Corporation Armeria
  • linecorp armeria

Classification

Weakness
  • CWE-287 Improper Authentication
  • CWE-304 Missing Critical Step in Authentication

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.