SSRF (Server-Side Request Forgery) fast-uri Dependency in Jira Software Data Center

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    • Type: Public Security Vulnerability
    • Resolution: Fixed
    • Priority: High
    • 11.3.1, 10.3.25
    • Affects Version/s: 10.3.0, 10.3.1, 10.3.2, 10.3.3, 10.3.4, 10.3.5, 10.3.6, 10.3.7, 10.3.8, 10.3.9, 10.3.10, 10.3.11, 10.3.12, 10.3.13, 10.3.14, 10.3.15, 11.3.0, 10.3.16, 10.3.17, 10.3.18, 10.3.19, 10.3.20, 10.3.21, 10.3.22, 10.3.23, 10.3.24
    • Component/s: Security
    • 7.5
    • High
    • CVE-2026-84292
    • Atlassian (Internal)
    • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
    • SSRF (Server-Side Request Forgery)
    • Jira Software Data Center

      This High severity SSRF (Server-Side Request Forgery) vulnerability was introduced in versions 10.3.0 and 11.3.0 of Jira Software Data Center.

      This SSRF (Server-Side Request Forgery) vulnerability, with a CVSS Score of 7.5 and a CVSS Vector of CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N allows an unauthenticated attacker to expose assets in your environment susceptible to exploitation, which has no impact to confidentiality, high impact to integrity, no impact to availability, and requires no user interaction.

      Atlassian recommends that Jira Software Data Center customers upgrade to latest version, if you are unable to do so, upgrade your instance to one of the specified supported fixed versions:

      • Jira Software Data Center 11.3: Upgrade to a release greater than or equal to 11.3.1
      • Jira Software Data Center 10.3: Upgrade to a release greater than or equal to 10.3.25

      See the release notes (https://www.atlassian.com/software/jira/download-archives). You can download the latest version
      of Jira Software Data Center from the download center (https://www.atlassian.com/software/jira/download-archives).

      The National Vulnerability Database provides the following description for this vulnerability:

      fast-uri serializes the port component of a URI without validating it. When recomposing the authority, the userinfo and host components are escaped but the port is concatenated verbatim, so a port value that is not a sequence of digits can inject authority delimiters, demoting the intended host to userinfo and pointing the authority at an attacker-controlled host. Both fast-uri and Node's URL read the result back as the attacker's host with no error, so re-validating the built URI does not catch it. This affects applications that build URIs from parts and assign untrusted data to the port component through the serialize, normalize, or equal functions in their object forms. The issue affects fast-uri versions before 2.4.6, from 3.0.0 before 3.1.7, and from 4.0.0 before 4.1.4. It is fixed in 2.4.6, 3.1.7, and 4.1.4, where recomposeAuthority rejects any port that is not a digit sequence per RFC 3986.

              Assignee:
              Unassigned
              Reporter:
              David Detweiler
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                Created:
                Updated:
                Resolved: