{"id":"EUVD-2026-92807","enisaUuid":"0dcb8b22-ebf1-38ab-88c6-374d2f9d6083","description":"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\u0027s 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 \u003e\u003d 4.6.0, fix versions: 9.4.26, 10.2.8, 10.5.1 -- Confluence Data Center, introduced in version \u003e\u003d 5.10.0, fix versions 9.2.26, 10.2.19 -- Crowd Data Center, introduced in version \u003e\u003d 2.11.0, fix versions 6.3.7, 7.0.3, 7.1.7, 7.2.4 -- Jira Software Data Center, introduced in version \u003e\u003d 7.1.0, fix versions 9.12.40, 10.3.26, 11.3.12 -- Jira Service Management Data Center, introduced in version \u003e\u003d 3.1.0, fix versions 5.12.40, 10.3.26, 11.3.12 -- Bamboo Data Center \u003e\u003d 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\u0027s exact name and path. The vulnerability does not include the capability to enumerate or list directory contents.","datePublished":"Oct 5, 2026, 9:30:00 PM","dateUpdated":"Oct 19, 2026, 6:26:40 PM","baseScore":9.3,"baseScoreVersion":"4.0","baseScoreVector":"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","references":"https://jira.atlassian.com/browse/BAM-26567\nhttps://jira.atlassian.com/browse/BSERV-20604\nhttps://jira.atlassian.com/browse/CONFSERVER-104488\nhttps://jira.atlassian.com/browse/CRUC-8741\nhttps://jira.atlassian.com/browse/CWD-6610\nhttps://jira.atlassian.com/browse/FE-7583\nhttps://jira.atlassian.com/browse/JRASERVER-79546\nhttps://jira.atlassian.com/browse/JSDSERVER-16809\n","aliases":"CVE-2026-21589\nGHSA-gr66-x5pq-8g2g\n","assigner":"atlassian","epss":12.71,"exploitedSince":"Oct 15, 2026, 12:00:00 AM","enisaIdProduct":[{"id":"124a4382-450b-36da-87ce-54cbf2e835e3","product":{"name":"Bitbucket Data Center","vendor":{"name":"Atlassian"}},"product_version":"All other versions"},{"id":"1f3de261-b492-3279-8c7f-6e6ef6d12f50","product":{"name":"Crucible Data Center","vendor":{"name":"Atlassian"}},"product_version":"All other versions"},{"id":"4f5959a5-b5d1-3bdf-a4a3-6c11c4fe750a","product":{"name":"Bamboo Data Center","vendor":{"name":"Atlassian"}},"product_version":"All other versions"},{"id":"5a98b7d5-12c2-39f7-b0e0-15749463fba0","product":{"name":"Confluence Data Center","vendor":{"name":"Atlassian"}},"product_version":"All other versions"},{"id":"7a9f57d8-8ad0-3d89-87ba-0dd3118eed3e","product":{"name":"Jira Software Data Center","vendor":{"name":"Atlassian"}},"product_version":"All other versions"},{"id":"81bcf532-9f39-3a88-a050-63c5dedf67a5","product":{"name":"Jira Service Management Data Center","vendor":{"name":"Atlassian"}},"product_version":"All other versions"},{"id":"85c91d43-a664-34f8-8b3d-ead891504f75","product":{"name":"Fisheye Data Center","vendor":{"name":"Atlassian"}},"product_version":"All other versions"},{"id":"f46aa784-caf9-3a76-ba64-539755d7c8be","product":{"name":"Crowd Data Center","vendor":{"name":"Atlassian"}},"product_version":"All other versions"}],"enisaIdVendor":[{"id":"20f2ef4d-bb15-3bf1-a127-160dd8ce072d","vendor":{"name":"Atlassian"}}],"enisaIdVulnerability":[{"id":"26be48f4-3e0e-3d0a-b478-4dd04507c481","vulnerability":{"id":"GHSA-gr66-x5pq-8g2g","description":"h3. Summary\n\nThis 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\u0027s 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.  \n\nh3. Context\n\nThis vulnerability allows an unauthenticated remote attacker to access specific files within the web application root directory in affected versions.\n\nh3. Details:\n\n* The vulnerability must be addressed for affected versions of:\n Bitbucket Data Center, introduced in version \u003e\u003d 4.6.0, fix versions: 9.4.26, 10.2.8, 10.5.1\n Confluence Data Center, introduced in version \u003e\u003d 5.10.0, fix versions 9.2.26, 10.2.19\n Crowd Data Center, introduced in version \u003e\u003d 2.11.0, fix versions 6.3.7, 7.0.3, 7.1.1, 7.2.4\n Jira Software Data Center, introduced in version \u003e\u003d 7.1.0, fix versions 9.12.40, 10.3.26, 11.3.12\n Jira Service Management Data Center, introduced in version \u003e\u003d 3.1.0, fix versions 5.12.40, 10.3.26, 11.3.12\n Bamboo Data Center \u003e\u003d 7.0.1, fix versions 10.2.24, 12.1.12\n Crucible, fix versions 4.9.15\n Fisheye, fix version 4.9.15\n* Exploitation requires prior knowledge of the target file\u0027s exact name and path.\n* The vulnerability does not include the capability to enumerate or list directory contents.","datePublished":"Oct 6, 2026, 12:32:50 AM","dateUpdated":"Oct 19, 2026, 9:35:53 PM","baseScore":0.0,"references":"https://nvd.nist.gov/vuln/detail/CVE-2026-21589\nhttps://github.com/watchtowrlabs/watchTowr-vs-Atlassian-CVE-2026-21589\nhttps://jira.atlassian.com/browse/BAM-26567\nhttps://jira.atlassian.com/browse/BSERV-20604\nhttps://jira.atlassian.com/browse/CONFSERVER-104488\nhttps://jira.atlassian.com/browse/CRUC-8741\nhttps://jira.atlassian.com/browse/CWD-6610\nhttps://jira.atlassian.com/browse/FE-7583\nhttps://jira.atlassian.com/browse/JRASERVER-79546\nhttps://jira.atlassian.com/browse/JSDSERVER-16809\nhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve\u003dCVE-2026-21589\n","enisa_id":"EUVD-2026-92807\n","aliases":"CVE-2026-21589\nGHSA-gr66-x5pq-8g2g\n","epss":0.0,"dataProcessed":"Oct 21, 2026, 1:01:50 PM","vulnerabilityProduct":[],"vulnerabilityVendor":[]}},{"id":"caeda589-a4f5-3126-b564-cbb5d32e1d0c","vulnerability":{"id":"CVE-2026-21589","description":"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\u0027s 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 \u003e\u003d 4.6.0, fix versions: 9.4.26, 10.2.8, 10.5.1 -- Confluence Data Center, introduced in version \u003e\u003d 5.10.0, fix versions 9.2.26, 10.2.19 -- Crowd Data Center, introduced in version \u003e\u003d 2.11.0, fix versions 6.3.7, 7.0.3, 7.1.7, 7.2.4 -- Jira Software Data Center, introduced in version \u003e\u003d 7.1.0, fix versions 9.12.40, 10.3.26, 11.3.12 -- Jira Service Management Data Center, introduced in version \u003e\u003d 3.1.0, fix versions 5.12.40, 10.3.26, 11.3.12 -- Bamboo Data Center \u003e\u003d 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\u0027s exact name and path. The vulnerability does not include the capability to enumerate or list directory contents.","datePublished":"Oct 5, 2026, 9:30:00 PM","dateUpdated":"Oct 19, 2026, 6:26:40 PM","status":"PUBLISHED","baseScore":9.3,"baseScoreVersion":"4.0","baseScoreVector":"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","references":"https://jira.atlassian.com/browse/BAM-26567\nhttps://jira.atlassian.com/browse/BSERV-20604\nhttps://jira.atlassian.com/browse/CONFSERVER-104488\nhttps://jira.atlassian.com/browse/CRUC-8741\nhttps://jira.atlassian.com/browse/CWD-6610\nhttps://jira.atlassian.com/browse/FE-7583\nhttps://jira.atlassian.com/browse/JRASERVER-79546\nhttps://jira.atlassian.com/browse/JSDSERVER-16809\n","enisa_id":"EUVD-2026-92807\n","assigner":"atlassian","epss":12.71,"dataProcessed":"Oct 21, 2026, 1:01:09 PM","exploitedSince":"Oct 15, 2026, 12:00:00 AM","vulnerabilityProduct":[{"id":"09f9736f-535d-3088-8793-7c319f3fb5ee","product":{"name":"Confluence Data Center","vendor":{"name":"Atlassian"}},"product_version":"All other versions"},{"id":"0fa3e4fa-d178-3ab4-a62d-30ed879eeda6","product":{"name":"Bamboo Data Center","vendor":{"name":"Atlassian"}},"product_version":"All other versions"},{"id":"378955d8-ef9e-3d1e-bb02-669aa3df0c5a","product":{"name":"Bitbucket Data Center","vendor":{"name":"Atlassian"}},"product_version":"All other versions"},{"id":"429c39c5-6946-3527-a9ab-5818e43e1f49","product":{"name":"Jira Service Management Data Center","vendor":{"name":"Atlassian"}},"product_version":"All other versions"},{"id":"5f57ed95-84c1-3ff9-9d20-4f89ca5e957d","product":{"name":"Jira Software Data Center","vendor":{"name":"Atlassian"}},"product_version":"All other versions"},{"id":"62f7a354-1fbf-3b06-ba73-be9bdadbe1f8","product":{"name":"Crucible Data Center","vendor":{"name":"Atlassian"}},"product_version":"All other versions"},{"id":"86190f57-2101-3e0b-80dc-e12af575507f","product":{"name":"Fisheye Data Center","vendor":{"name":"Atlassian"}},"product_version":"All other versions"},{"id":"d8f8a47b-79d1-3dfd-bbd1-8124c229ceea","product":{"name":"Crowd Data Center","vendor":{"name":"Atlassian"}},"product_version":"All other versions"}],"vulnerabilityVendor":[{"id":"6a226373-64b2-30c1-a3bb-f156831afe62","vendor":{"name":"Atlassian"}}]}}],"enisaIdAdvisory":[{"id":"492758a8-1917-38ff-aa8f-6ae8982304e0","advisory":{"id":"WID-SEC-W-2026-3755","description":"Atlassian Produkte (Bamboo, Bitbucket, Confluence, Crucible, Fisheye und Jira): Schwachstelle ermöglicht Offenlegung von Informationen","summary":"Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Atlassian Bamboo, Atlassian Bitbucket, Atlassian Confluence, Atlassian Crucible, Atlassian Fisheye und Atlassian Jira ausnutzen, um Informationen offenzulegen.","datePublished":"Oct 5, 2026, 10:00:00 PM","dateUpdated":"Oct 6, 2026, 10:00:00 PM","baseScore":0.0,"references":"https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-3755.json\nhttps://wid.cert-bund.de/portal/wid/securityadvisory?name\u003dWID-SEC-2026-3755\n","aliases":"CVE-2026-21589\n","source":{"id":8,"name":"csaf_certbund"},"advisoryProduct":[{"id":"03dc49eb-6dfc-358f-9129-9b2c4e2cfb30","product":{"name":"Confluence","vendor":{"name":"Atlassian"}}},{"id":"1180ead0-9d74-3db6-a786-fd3834f56438","product":{"name":"Jira","vendor":{"name":"Atlassian"}}},{"id":"22456c61-6ab8-371c-ac8c-44c81483cfa2","product":{"name":"Software 10.3.26","vendor":{"name":"Atlassian"}}},{"id":"29aeec78-c0e9-30af-9bc7-b9a619d66eaf","product":{"name":"4.9.15","vendor":{"name":"Atlassian"}}},{"id":"2d676ff6-ea28-3077-b99f-a70b3f5dc0af","product":{"name":"9.2.26","vendor":{"name":"Atlassian"}}},{"id":"40b1b11b-8d77-3878-93f7-93b04a83bb21","product":{"name":"Service Management 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