Vulnerability-Lookup

CERTFR-2026-AVI-1264

Vulnerability from certfr_avis - Published: 2026-10-06 - Updated: 2026-10-07

Unevulnérabilité a été découverte dans les produits Atlassian. Elle permet à un attaquant de provoquer une atteinte à la confidentialité des données.

Solutions

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Impacted products

Vendor	Product	Description
Atlassian	N/A	Crucible versions antérieures à 4.9.15
Atlassian	N/A	Bamboo Data Center versions 12.1.x antérieures à 12.1.12
Atlassian	Jira	Jira Software Data Center versions 11.3.x antérieures à 11.3.12
Atlassian	Jira	Jira Software Data Center versions 10.3.x antérieures à 10.3.26
Atlassian	N/A	Crowd Data Center versions 7.2.x antérieures à 7.2.4
Atlassian	Confluence	Confluence Data Center versions 10.2.x antérieures à 10.2.19
Atlassian	N/A	Crowd Data Center versions 7.0x antérieures à 7.0.3
Atlassian	N/A	Bamboo Data Center versions antérieures à 10.2.24
Atlassian	N/A	Bitbucket Data Center versions 10.2.x antérieures à 10.2.8
Atlassian	Jira	Jira Software Data Center versions antérieures à 9.12.40
Atlassian	N/A	Crowd Data Center versions antérieures à 6.3.7
Atlassian	Confluence	Confluence Data Center versions antérieures à 9.2.26
Atlassian	N/A	Crowd Data Center versions 7.1.x antérieures à 7.1.7
Atlassian	N/A	Fisheye versions antérieures à 4.9.15
Atlassian	N/A	Bitbucket Data Center versions antérieures à 9.4.26
Atlassian	N/A	Bitbucket Data Center versions 10.5.x antérieures à 10.5.1

References

Title

Publication Time

Tags

Bulletin de sécurité Atlassian cve-2026-21589-arbitrary-file-access-vulnerability-impacts-multiple-products-1870495748

2026-10-05

vendor-advisory

Show details on source website

JSON

To clipboard

{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "Crucible versions ant\u00e9rieures \u00e0 4.9.15",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Atlassian",
          "scada": false
        }
      }
    },
    {
      "description": "Bamboo Data Center versions 12.1.x ant\u00e9rieures \u00e0 12.1.12",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Atlassian",
          "scada": false
        }
      }
    },
    {
      "description": "Jira Software Data Center versions 11.3.x ant\u00e9rieures \u00e0 11.3.12",
      "product": {
        "name": "Jira",
        "vendor": {
          "name": "Atlassian",
          "scada": false
        }
      }
    },
    {
      "description": "Jira Software Data Center versions 10.3.x ant\u00e9rieures \u00e0 10.3.26",
      "product": {
        "name": "Jira",
        "vendor": {
          "name": "Atlassian",
          "scada": false
        }
      }
    },
    {
      "description": "Crowd Data Center versions 7.2.x ant\u00e9rieures \u00e0 7.2.4",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Atlassian",
          "scada": false
        }
      }
    },
    {
      "description": "Confluence Data Center versions 10.2.x ant\u00e9rieures \u00e0 10.2.19",
      "product": {
        "name": "Confluence",
        "vendor": {
          "name": "Atlassian",
          "scada": false
        }
      }
    },
    {
      "description": "Crowd Data Center versions 7.0x ant\u00e9rieures \u00e0 7.0.3",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Atlassian",
          "scada": false
        }
      }
    },
    {
      "description": "Bamboo Data Center versions ant\u00e9rieures \u00e0 10.2.24",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Atlassian",
          "scada": false
        }
      }
    },
    {
      "description": "Bitbucket Data Center versions 10.2.x ant\u00e9rieures \u00e0 10.2.8",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Atlassian",
          "scada": false
        }
      }
    },
    {
      "description": "Jira Software Data Center versions ant\u00e9rieures \u00e0 9.12.40",
      "product": {
        "name": "Jira",
        "vendor": {
          "name": "Atlassian",
          "scada": false
        }
      }
    },
    {
      "description": "Crowd Data Center versions ant\u00e9rieures \u00e0 6.3.7",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Atlassian",
          "scada": false
        }
      }
    },
    {
      "description": "Confluence Data Center versions ant\u00e9rieures \u00e0 9.2.26",
      "product": {
        "name": "Confluence",
        "vendor": {
          "name": "Atlassian",
          "scada": false
        }
      }
    },
    {
      "description": "Crowd Data Center versions 7.1.x ant\u00e9rieures \u00e0 7.1.7",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Atlassian",
          "scada": false
        }
      }
    },
    {
      "description": "Fisheye versions ant\u00e9rieures \u00e0 4.9.15",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Atlassian",
          "scada": false
        }
      }
    },
    {
      "description": "Bitbucket Data Center versions ant\u00e9rieures \u00e0 9.4.26",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Atlassian",
          "scada": false
        }
      }
    },
    {
      "description": "Bitbucket Data Center versions 10.5.x ant\u00e9rieures \u00e0 10.5.1",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Atlassian",
          "scada": false
        }
      }
    }
  ],
  "affected_systems_content": "",
  "content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
  "cves": [
    {
      "name": "CVE-2026-21589",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-21589"
    }
  ],
  "initial_release_date": "2026-10-06T00:00:00",
  "last_revision_date": "2026-10-07T00:00:00",
  "links": [],
  "reference": "CERTFR-2026-AVI-1264",
  "revisions": [
    {
      "description": "Version initiale",
      "revision_date": "2026-10-06T00:00:00.000000"
    },
    {
      "description": "La vuln\u00e9rabilit\u00e9 CVE-2026-21589 est la seule \u00e0 faire l\u0027objet de l\u0027avis \u00e9diteur.",
      "revision_date": "2026-10-07T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
    }
  ],
  "summary": "Unevuln\u00e9rabilit\u00e9 a \u00e9t\u00e9 d\u00e9couverte dans les produits Atlassian. Elle permet \u00e0 un attaquant de provoquer une atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es.",
  "title": "Vuln\u00e9rabilit\u00e9 dans les produits Atlassian",
  "vendor_advisories": [
    {
      "published_at": "2026-10-05",
      "title": "Bulletin de s\u00e9curit\u00e9 Atlassian cve-2026-21589-arbitrary-file-access-vulnerability-impacts-multiple-products-1870495748",
      "url": "https://confluence.atlassian.com/security/cve-2026-21589-arbitrary-file-access-vulnerability-impacts-multiple-products-1870495748.html"
    }
  ]
}

CVE-2026-21589 (GCVE-0-2026-21589)

Vulnerability from cvelistv5 – Published: 2026-10-05 21:30 – Updated: 2026-10-07 13:04

Summary

This is a vulnerability in Bitbucket Data Center, Confluence Data Center, Jira Service Management Data Center, Jira Software Data Center, Bamboo Data Center. Crowd Data Center, Crucible and Fisheye. This Arbitrary File Access vulnerability allows an unauthenticated attacker to access specific files within the web application root directory in affected versions. Exploitation requires prior knowledge of the target file's exact name and path; this vulnerability does not allow attackers to enumerate or list directory contents. In some configurations, there may be some sensitive files that make this highly severe. This vulnerability allows an unauthenticated remote attacker to access specific files within the web application root directory in affected versions. The vulnerability must be addressed for affected versions of: -- Bitbucket Data Center, introduced in version >= 4.6.0, fix versions: 9.4.26, 10.2.8, 10.5.1 -- Confluence Data Center, introduced in version >= 5.10.0, fix versions 9.2.26, 10.2.19 -- Crowd Data Center, introduced in version >= 2.11.0, fix versions 6.3.7, 7.0.3, 7.1.7, 7.2.4 -- Jira Software Data Center, introduced in version >= 7.1.0, fix versions 9.12.40, 10.3.26, 11.3.12 -- Jira Service Management Data Center, introduced in version >= 3.1.0, fix versions 5.12.40, 10.3.26, 11.3.12 -- Bamboo Data Center >= 7.0.1, fix versions 10.2.24, 12.1.12 -- Crucible, fix versions 4.9.15 -- Fisheye, fix version 4.9.15 -- Exploitation requires prior knowledge of the target file's exact name and path. The vulnerability does not include the capability to enumerate or list directory contents.

Severity

9.3 (Critical)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-07 13:04 UTC

CWE

Path Traversal (Arbitrary Read/Write)
CWE-552 - Files or Directories Accessible to External Parties

Assigner

atlassian mitre root Scorecard

References

9 references

URL	Tags
https://jira.atlassian.com/browse/BAM-26567
https://jira.atlassian.com/browse/BSERV-20604
https://jira.atlassian.com/browse/CONFSERVER-104488
https://jira.atlassian.com/browse/CRUC-8741
https://jira.atlassian.com/browse/CWD-6610
https://jira.atlassian.com/browse/FE-7583
https://jira.atlassian.com/browse/JRASERVER-79546
https://jira.atlassian.com/browse/JSDSERVER-16809
https://github.com/watchtowrlabs/watchTowr-vs-Atl…	exploit

Impacted products

8 products

Vendor	Product	Version
Atlassian	Bamboo Data Center	Affected: All other versions Unaffected: Patch version 10.2.24 and later Unaffected: Patch version 12.1.12 and later
Atlassian	Bitbucket Data Center	Affected: All other versions Unaffected: Patch version 10.2.8 and later Unaffected: Patch version 10.5.1 and later Unaffected: Patch version 9.4.26 and later
Atlassian	Confluence Data Center	Affected: All other versions Unaffected: Patch version 10.2.19 and later Unaffected: Patch version 9.2.26 and later
Atlassian	Crowd Data Center	Affected: All other versions Unaffected: Patch version 7.2.4 and later Unaffected: Patch version 7.1.7 and later Unaffected: Patch version 7.0.3 and later Unaffected: Patch version 6.3.7 and later
Atlassian	Crucible Data Center	Affected: All other versions Unaffected: Patch version 4.9.15 and later
Atlassian	Fisheye Data Center	Affected: All other versions Unaffected: Patch version 4.9.15 and later
Atlassian	Jira Service Management Data Center	Affected: All other versions Unaffected: Patch version 11.3.12 and later Unaffected: Patch version 10.3.26 and later Unaffected: Patch version 5.12.40 and later
Atlassian	Jira Software Data Center	Affected: All other versions Unaffected: Patch version 11.3.12 and later Unaffected: Patch version 10.3.26 and later Unaffected: Patch version 9.12.40 and later

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-21589",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-07T13:04:54.917548Z",
                "version": "2.0.3"
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            "descriptions": [
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      }
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    "cna": {
      "affected": [
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          "product": "Bamboo Data Center",
          "vendor": "Atlassian",
          "versions": [
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              "status": "affected",
              "version": "All other versions"
            },
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              "status": "unaffected",
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            {
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        {
          "product": "Bitbucket Data Center",
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            {
              "status": "unaffected",
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              "status": "unaffected",
              "version": "Patch version 6.3.7 and later"
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          "product": "Crucible Data Center",
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          "product": "Fisheye Data Center",
          "vendor": "Atlassian",
          "versions": [
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            {
              "status": "unaffected",
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        {
          "product": "Jira Service Management Data Center",
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              "status": "unaffected",
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              "status": "unaffected",
              "version": "Patch version 10.3.26 and later"
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              "status": "unaffected",
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          "product": "Jira Software Data Center",
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              "status": "affected",
              "version": "All other versions"
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            {
              "status": "unaffected",
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            {
              "status": "unaffected",
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              "status": "unaffected",
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        }
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            "baseSeverity": "CRITICAL",
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          "url": "https://jira.atlassian.com/browse/CONFSERVER-104488"
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          "url": "https://jira.atlassian.com/browse/CRUC-8741"
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    "datePublished": "2026-10-05T21:30:00.390Z",
    "dateReserved": "2026-01-01T00:00:40.722Z",
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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