CVE Explorer

CVE-2026-8467

Code Injection vulnerability in phenixdigital phoenix_storybook allows unauthenticated remote code execution via unsanitized attribute value interpolation in HEEx template generation. The psb-assign WebSocket event handler in 'Elixir.PhoenixStorybook.Story.PlaygroundPreviewLive':handle_event/3 accepts arbitrary attribute names and values from unauthenticated clients. These values are passed to 'Elixir.PhoenixStorybook.Helpers.ExtraAssignsHelpers':handle_set_variation_assign/3, which stores them

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:8f05b8054402919a138a6e6ec8277187d33d02fd7027a550d833c8dca19b7849

Known exploited

Not asserted

Disputed

Stale source

Conflicts

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:phenixdigital:phoenix_storybook:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["Elixir.PhoenixStorybook.Rendering.ComponentRenderer","Elixir.PhoenixStorybook.Story.PlaygroundPreviewLive","Elixir.PhoenixStorybook.Helpers.ExtraAssignsHelpers"],"packageName":"phoenix_storybook","packageURL":"pkg:hex/phoenix_storybook","product":"phoenix_storybook","programFiles":["lib/phoenix_storybook/rendering/component_renderer.ex","lib/phoenix_storybook/live/story/playground_preview_live.ex","lib/phoenix_storybook/helpers/extra_assigns_helpe…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:7e9b4735272048e982f3503cd6c6e3dd0f56c7155418b8f19821c49d27f8f5eb · sha256:5f80c0ad060a304a… · /containers/cna/affected/0

{"collectionURL":"https://github.com","cpes":["cpe:2.3:a:phenixdigital:phoenix_storybook:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["Elixir.PhoenixStorybook.Rendering.ComponentRenderer","Elixir.PhoenixStorybook.Story.PlaygroundPreviewLive","Elixir.PhoenixStorybook.Helpers.ExtraAssignsHelpers"],"packageName":"phenixdigital/phoenix_storybook","packageURL":"pkg:github/phenixdigital/phoenix_storybook","product":"phoenix_storybook","programFiles":["lib/phoenix_storybook/rendering/component_renderer.ex","lib/phoenix_storybook/live/story/playground_preview_live.ex","lib/phoenix_storybo…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:7e9b4735272048e982f3503cd6c6e3dd0f56c7155418b8f19821c49d27f8f5eb · sha256:5f80c0ad060a304a… · /containers/cna/affected/1

Affected products and versions

2 source assertions

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:7e9b4735272048e982f3503cd6c6e3dd0f56c7155418b8f19821c49d27f8f5eb · sha256:5f80c0ad060a304a… · /containers/cna/affected/0

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:7e9b4735272048e982f3503cd6c6e3dd0f56c7155418b8f19821c49d27f8f5eb · sha256:5f80c0ad060a304a… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":9.5,"baseSeverity":"CRITICAL","privilegesRequired":"NONE","subAvailabilityImpact":"HIGH","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:7e9b4735272048e982f3503cd6c6e3dd0f56c7155418b8f19821c49d27f8f5eb · sha256:5f80c0ad060a304a… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion

{"cweId":"CWE-94","description":"CWE-94 Improper Control of Generation of Code ('Code Injection')","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:7e9b4735272048e982f3503cd6c6e3dd0f56c7155418b8f19821c49d27f8f5eb · sha256:5f80c0ad060a304a… · /containers/cna/problemTypes/0/descriptions/0

Source references

5 source assertions

{"tags":["related"],"url":"https://cna.erlef.org/cves/CVE-2026-8467.html"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:7e9b4735272048e982f3503cd6c6e3dd0f56c7155418b8f19821c49d27f8f5eb · sha256:5f80c0ad060a304a… · /containers/cna/references/1

{"tags":["patch"],"url":"https://github.com/phenixdigital/phoenix_storybook/commit/56ab8464d4375fa52db806148a06cce126ad481d"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:7e9b4735272048e982f3503cd6c6e3dd0f56c7155418b8f19821c49d27f8f5eb · sha256:5f80c0ad060a304a… · /containers/cna/references/3

{"tags":["exploit"],"url":"https://github.com/phenixdigital/phoenix_storybook/security/advisories/GHSA-55hg-8qxv-qj4p"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:7e9b4735272048e982f3503cd6c6e3dd0f56c7155418b8f19821c49d27f8f5eb · sha256:5f80c0ad060a304a… · /containers/adp/0/references/0

{"tags":["vendor-advisory","related"],"url":"https://github.com/phenixdigital/phoenix_storybook/security/advisories/GHSA-55hg-8qxv-qj4p"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:7e9b4735272048e982f3503cd6c6e3dd0f56c7155418b8f19821c49d27f8f5eb · sha256:5f80c0ad060a304a… · /containers/cna/references/0

{"tags":["related"],"url":"https://osv.dev/vulnerability/EEF-CVE-2026-8467"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:7e9b4735272048e982f3503cd6c6e3dd0f56c7155418b8f19821c49d27f8f5eb · sha256:5f80c0ad060a304a… · /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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