ArmeriaApplication · Linecorp

CVE-2024-1735

CRITICAL · 9.1 CVSS v3.1 Published 2024-02-26
Fix available
A fix is available. Upgrade to 1.27.2 or later.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
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.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

A vulnerability in armeria-saml versions before 1.27.2 allows malicious SAML messages to bypass authentication mechanisms. The specific nature of the bypass is not detailed, but the vulnerability is exploitable through crafted SAML authentication requests.

MitigationUpgrade armeria-saml to version 1.27.2 or later and verify SAML authentication functionality continues to work correctly.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
ArmeriaApplication
Affected:< 1.27.2

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify armeria-saml dependency
    Inspect project build files (pom.xml, build.gradle, requirements.txt) or application classpath for 'armeria-saml' or 'com.linecorp.armeria:armeria-saml' dependency
    Affected if The armeria-saml library is present in the project dependencies
  2. Determine installed version of armeria-saml
    Run 'mvn dependency:tree | grep armeria-saml' for Maven projects, or 'gradle dependencies | grep armeria-saml' for Gradle projects, to list the exact version in use
    Affected if The version shown is below 1.27.2 (e.g., 1.27.1, 1.27.0, 1.26.x, etc.)
  3. Check if SAML authentication is configured
    Review application configuration files and Armeria server setup code for SAML-related beans or builders (e.g., SamlServiceProvider, saml() method calls in ServerBuilder, SAML-related configuration properties)
    Affected if SAML authentication is actively configured and enabled in the Armeria server
  4. Verify SAML endpoint is exposed
    Inspect network listeners or port configurations to confirm the application exposes endpoints that handle SAML authentication (typically /saml/* paths or custom SAML endpoints)
    Affected if The server exposes SAML authentication endpoints to clients

The environment is affected if armeria-saml version is below 1.27.2 AND SAML authentication is configured and exposed in the Armeria server

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 1.27.2 or later
Fixed in 1.27.2
Interim mitigation

Upgrade armeria-saml to version 1.27.2 or later and verify SAML authentication functionality continues to work correctly.

Recommended fix High confidence

1.27.2

  1. Identify your build system (Maven or Gradle) used in your project
  2. For Maven: Update the armeria-saml dependency version in your pom.xml file to 1.27.2 or later
  3. For Gradle: Update the armeria-saml dependency version in your build.gradle file to 1.27.2 or later
  4. Run your build tool to resolve the new dependency (mvn clean install or gradle build)
  5. Verify the upgrade by running your test suite to ensure the authentication bypass is resolved
  6. Deploy the updated application

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Armeria Scoped from the published advisory
  • Consultation2.0 h
  • Implementation2.0 h
  • Testing6.0 h
  • Review / QA2.0 h
12.0 hours of engineering $2,020
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,232.

Scan for this in your stack

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dbcve dependency scanner

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2024-1735 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data