Description
OneLogin Ruby-SAML 1.6.0 and earlier may incorrectly utilize the results of XML DOM traversal and canonicalization APIs in such a way that an attacker may be able to manipulate the SAML data without invalidating the cryptographic signature, allowing the attack to potentially bypass authentication to SAML service providers.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| OneLogin | Ruby-SAML | unspecified – < 1.6.0 | 1.6.0 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 12 | ruby-saml | 1.7.2-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | ruby-saml | 1.15.0-1ubuntu0.24.04.1 | USN-7309-1 |
| Ubuntu 22.04 LTS | ruby-saml | 1.13.0-1ubuntu0.1 | USN-7309-1 |
| Ubuntu 20.04 LTS | ruby-saml | 1.11.0-1ubuntu0.1 | USN-7309-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | ruby-saml | 1.7.2-1ubuntu0.1~esm1 | USN-7309-1 |
| Ubuntu Pro 16.04 LTS | ruby-saml | 1.1.2-1ubuntu1+esm1 | USN-7309-1 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| RubyGems | ruby-saml | < 1.7.0 | 1.7.0 | GHSA-x2fr-v8wf-8wwv |
Advisories 1
- USN-7309-1 Ruby SAML vulnerabilities Ubuntu Security Notices (USN) · Jun 25, 2026