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CVE-2026-66296

Improper Neutralization of Input During Web Page Generation (XSS) vulnerability in lud oaskit allows reflected cross-site scripting via the default HTML error handler. Oaskit.ErrorHandler.Default.format_reason/4 and Oaskit.ErrorHandler.Default.reason_to_html/1 in lib/oaskit/error_handler/default.ex render request-validation failures as an HTML page whenever the request's Accept header contains html, interpolating request-controlled strings into that page without HTML escaping. The unescaped val
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:7f0938390a56522c24f8151fa866bbb7ce07808eb45bb5dfe7ff84470b355687
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"collectionURL":"https://repo.hex.pm","cpes":["cpe:2.3:a:lud:oaskit:*:*:*:*:*:elixir:*:*"],"defaultStatus":"unaffected","modules":["Elixir.Oaskit.ErrorHandler.Default"],"packageName":"oaskit","packageURL":"pkg:hex/oaskit","product":"oaskit","programFiles":["lib/oaskit/error_handler/default.ex"],"programRoutines":[{"name":"'Elixir.Oaskit.ErrorHandler.Default':format_reason/4"},{"name":"'Elixir.Oaskit.ErrorHandler.Default':reason_to_html/1"}],"repo":"https://github.com/lud/oaskit","vendor":"lud","versions":[{"lessThan":"0.14.1","status":"affected","version":"0.1.0","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:08caa88d267ab16dbee8f43ddeb8f0549e8de3abb18d1e5fc712338ce63674c7 · sha256:a402f3c0924a60fa… · /containers/cna/affected/0

{"collectionURL":"https://github.com","cpes":["cpe:2.3:a:lud:oaskit:*:*:*:*:*:elixir:*:*"],"defaultStatus":"unaffected","modules":["Elixir.Oaskit.ErrorHandler.Default"],"packageName":"lud/oaskit","packageURL":"pkg:github/lud/oaskit","product":"oaskit","programFiles":["lib/oaskit/error_handler/default.ex"],"programRoutines":[{"name":"'Elixir.Oaskit.ErrorHandler.Default':format_reason/4"},{"name":"'Elixir.Oaskit.ErrorHandler.Default':reason_to_html/1"}],"repo":"https://github.com/lud/oaskit","vendor":"lud","versions":[{"lessThan":"b70c6b2eaf0b11bdd0bbb21b8a87dbb3d46918a1","status":"affected","ve…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:08caa88d267ab16dbee8f43ddeb8f0549e8de3abb18d1e5fc712338ce63674c7 · sha256:a402f3c0924a60fa… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"collectionURL":"https://repo.hex.pm","cpes":["cpe:2.3:a:lud:oaskit:*:*:*:*:*:elixir:*:*"],"defaultStatus":"unaffected","modules":["Elixir.Oaskit.ErrorHandler.Default"],"packageName":"oaskit","packageURL":"pkg:hex/oaskit","product":"oaskit","programFiles":["lib/oaskit/error_handler/default.ex"],"programRoutines":[{"name":"'Elixir.Oaskit.ErrorHandler.Default':format_reason/4"},{"name":"'Elixir.Oaskit.ErrorHandler.Default':reason_to_html/1"}],"repo":"https://github.com/lud/oaskit","vendor":"lud","versions":[{"lessThan":"0.14.1","status":"affected","version":"0.1.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:08caa88d267ab16dbee8f43ddeb8f0549e8de3abb18d1e5fc712338ce63674c7 · sha256:a402f3c0924a60fa… · /containers/cna/affected/0
{"collectionURL":"https://github.com","cpes":["cpe:2.3:a:lud:oaskit:*:*:*:*:*:elixir:*:*"],"defaultStatus":"unaffected","modules":["Elixir.Oaskit.ErrorHandler.Default"],"packageName":"lud/oaskit","packageURL":"pkg:github/lud/oaskit","product":"oaskit","programFiles":["lib/oaskit/error_handler/default.ex"],"programRoutines":[{"name":"'Elixir.Oaskit.ErrorHandler.Default':format_reason/4"},{"name":"'Elixir.Oaskit.ErrorHandler.Default':reason_to_html/1"}],"repo":"https://github.com/lud/oaskit","vendor":"lud","versions":[{"lessThan":"b70c6b2eaf0b11bdd0bbb21b8a87dbb3d46918a1","status":"affected","ve…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:08caa88d267ab16dbee8f43ddeb8f0549e8de3abb18d1e5fc712338ce63674c7 · sha256:a402f3c0924a60fa… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.1,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","userInteraction":"ACTIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"N…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:08caa88d267ab16dbee8f43ddeb8f0549e8de3abb18d1e5fc712338ce63674c7 · sha256:a402f3c0924a60fa… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-79","description":"CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:08caa88d267ab16dbee8f43ddeb8f0549e8de3abb18d1e5fc712338ce63674c7 · sha256:a402f3c0924a60fa… · /containers/cna/problemTypes/0/descriptions/0

Source references

5 source assertions
{"tags":["related"],"url":"https://cna.erlef.org/cves/CVE-2026-66296.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:08caa88d267ab16dbee8f43ddeb8f0549e8de3abb18d1e5fc712338ce63674c7 · sha256:a402f3c0924a60fa… · /containers/cna/references/1
{"tags":["patch"],"url":"https://github.com/lud/oaskit/commit/b70c6b2eaf0b11bdd0bbb21b8a87dbb3d46918a1"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:08caa88d267ab16dbee8f43ddeb8f0549e8de3abb18d1e5fc712338ce63674c7 · sha256:a402f3c0924a60fa… · /containers/cna/references/3
{"tags":["vendor-advisory","related"],"url":"https://github.com/lud/oaskit/security/advisories/GHSA-h7xw-x8wr-xpcc"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:08caa88d267ab16dbee8f43ddeb8f0549e8de3abb18d1e5fc712338ce63674c7 · sha256:a402f3c0924a60fa… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/lud/oaskit/security/advisories/GHSA-h7xw-x8wr-xpcc"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:08caa88d267ab16dbee8f43ddeb8f0549e8de3abb18d1e5fc712338ce63674c7 · sha256:a402f3c0924a60fa… · /containers/adp/0/references/0
{"tags":["related"],"url":"https://osv.dev/vulnerability/EEF-CVE-2026-66296"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:08caa88d267ab16dbee8f43ddeb8f0549e8de3abb18d1e5fc712338ce63674c7 · sha256:a402f3c0924a60fa… · /containers/cna/references/2

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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