An issue was discovered in the SAML Single Sign On (SSO) plugin for several Atlassian…
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
An issue was discovered in the SAML Single Sign On (SSO) plugin for several Atlassian products affecting versions 3.1.0 through 3.2.2 for Jira and Confluence, versions 2.4.0 through 3.0.3 for Bitbucket, and versions 2.4.0 through 2.5.2 for Bamboo. It allows locally disabled users to reactivate their accounts just by browsing the affected Jira/Confluence/Bitbucket/Bamboo instance, even when the applicable configuration option of the plugin has been disabled ("Reactivate inactive users"). Exploiting this vulnerability requires an attacker to be authorized by the identity provider and requires that the plugin's configuration option "User Update Method" have the "Update from SAML Attributes" value.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:atlassian:saml_single_sign_on:*:*:*:*:*:bamboo:*:* | 2.4.0 – 3.0.3 | Vulnerable | Atlassian |
| cpe:2.3:a:atlassian:saml_single_sign_on:*:*:*:*:*:bitbucket:*:* | 2.4.0 – 3.0.3 | Vulnerable | Atlassian |
| cpe:2.3:a:atlassian:saml_single_sign_on:*:*:*:*:*:confluence:*:* | 3.1.0 – 3.2.2 | Vulnerable | Atlassian |
| cpe:2.3:a:atlassian:saml_single_sign_on:*:*:*:*:*:jira:*:* | 3.1.0 – 3.2.2 | Vulnerable | Atlassian |
- cpe:2.3:a:atlassian:saml_single_sign_on:*:*:*:*:*:bamboo:*:* Versions 2.4.0 – 3.0.3 Vulnerable ·Atlassian
- cpe:2.3:a:atlassian:saml_single_sign_on:*:*:*:*:*:bitbucket:*:* Versions 2.4.0 – 3.0.3 Vulnerable ·Atlassian
- cpe:2.3:a:atlassian:saml_single_sign_on:*:*:*:*:*:confluence:*:* Versions 3.1.0 – 3.2.2 Vulnerable ·Atlassian
- cpe:2.3:a:atlassian:saml_single_sign_on:*:*:*:*:*:jira:*:* Versions 3.1.0 – 3.2.2 Vulnerable ·Atlassian
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-13347
- 2026-10-03 Alias added: GHSA-pq6q-vhr6-vqvj
References
More Atlassian Saml Single Sign On vulnerabilities
- TI-2021-15653 The resolution SAML SSO apps for Atlassian products allow a remote attacker to login to a… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2019-13347 · CVE Program
- CVE-2019-13347 · NVD
- FIRST EPSS
- GHSA-pq6q-vhr6-vqvj · GitHub Advisory Database · CC BY 4.0
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