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CVE-2026-55518

Avo is a framework to create admin panels for Ruby on Rails apps. Prior to 3.32.1 and 4.0.0.beta.51, Avo's association attach workflow checks attach_<association>? in the UI and GET /resources/:resource/:id/:related/new path, but the actual write endpoint, POST /resources/:resource/:id/:related, does not run the same authorization check before mutating the association through Avo::AssociationsController#create. An authenticated low-privileged Avo user can bypass hidden or disabled attach control
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:8669a44517da83e04b792c038540c16370f7648bcc2e81b4e87c6420c6c8d73b
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 3 assertions

{"cweId":"CWE-862","description":"CWE-862: Missing Authorization","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:608dfa9aee3049b6f6e6cf157fe7815d9bcd21e81fa4d60404b8f0ed4e3027af · sha256:ee3deb37551884e6… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-863","description":"CWE-863: Incorrect Authorization","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:608dfa9aee3049b6f6e6cf157fe7815d9bcd21e81fa4d60404b8f0ed4e3027af · sha256:ee3deb37551884e6… · /containers/cna/problemTypes/2/descriptions/0

{"cweId":"CWE-639","description":"CWE-639: Authorization Bypass Through User-Controlled Key","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:608dfa9aee3049b6f6e6cf157fe7815d9bcd21e81fa4d60404b8f0ed4e3027af · sha256:ee3deb37551884e6… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"product":"avo","vendor":"avo-hq","versions":[{"status":"affected","version":">= 4.0.0.beta.1, < 4.0.0.beta.51"},{"status":"affected","version":"< 3.32.1"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:608dfa9aee3049b6f6e6cf157fe7815d9bcd21e81fa4d60404b8f0ed4e3027af · sha256:ee3deb37551884e6… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":9.6,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:608dfa9aee3049b6f6e6cf157fe7815d9bcd21e81fa4d60404b8f0ed4e3027af · sha256:ee3deb37551884e6… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

3 source assertions
{"cweId":"CWE-862","description":"CWE-862: Missing Authorization","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:608dfa9aee3049b6f6e6cf157fe7815d9bcd21e81fa4d60404b8f0ed4e3027af · sha256:ee3deb37551884e6… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-863","description":"CWE-863: Incorrect Authorization","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:608dfa9aee3049b6f6e6cf157fe7815d9bcd21e81fa4d60404b8f0ed4e3027af · sha256:ee3deb37551884e6… · /containers/cna/problemTypes/2/descriptions/0
{"cweId":"CWE-639","description":"CWE-639: Authorization Bypass Through User-Controlled Key","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:608dfa9aee3049b6f6e6cf157fe7815d9bcd21e81fa4d60404b8f0ed4e3027af · sha256:ee3deb37551884e6… · /containers/cna/problemTypes/0/descriptions/0

Source references

5 source assertions
{"name":"https://github.com/avo-hq/avo/commit/995928e586fd1788dd496bd51c4dbe4a79cb2b9c","tags":["x_refsource_MISC"],"url":"https://github.com/avo-hq/avo/commit/995928e586fd1788dd496bd51c4dbe4a79cb2b9c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:608dfa9aee3049b6f6e6cf157fe7815d9bcd21e81fa4d60404b8f0ed4e3027af · sha256:ee3deb37551884e6… · /containers/cna/references/2
{"name":"https://github.com/avo-hq/avo/pull/4568","tags":["x_refsource_MISC"],"url":"https://github.com/avo-hq/avo/pull/4568"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:608dfa9aee3049b6f6e6cf157fe7815d9bcd21e81fa4d60404b8f0ed4e3027af · sha256:ee3deb37551884e6… · /containers/cna/references/1
{"name":"https://github.com/avo-hq/avo/releases/tag/v3.32.1","tags":["x_refsource_MISC"],"url":"https://github.com/avo-hq/avo/releases/tag/v3.32.1"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:608dfa9aee3049b6f6e6cf157fe7815d9bcd21e81fa4d60404b8f0ed4e3027af · sha256:ee3deb37551884e6… · /containers/cna/references/3
{"name":"https://github.com/avo-hq/avo/security/advisories/GHSA-8fq9-273g-6mrg","tags":["x_refsource_CONFIRM"],"url":"https://github.com/avo-hq/avo/security/advisories/GHSA-8fq9-273g-6mrg"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:608dfa9aee3049b6f6e6cf157fe7815d9bcd21e81fa4d60404b8f0ed4e3027af · sha256:ee3deb37551884e6… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/avo-hq/avo/security/advisories/GHSA-8fq9-273g-6mrg"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:608dfa9aee3049b6f6e6cf157fe7815d9bcd21e81fa4d60404b8f0ed4e3027af · sha256:ee3deb37551884e6… · /containers/adp/0/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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