{"affected":[{"product":"altair","source":"CNA: GitHub_M","vendor":"altair-graphql","versions":[{"status":"affected","version":">= 7.2.4, < 8.5.8"}]},{"product":"altair-express-middleware","source":"CNA: GitHub_M","vendor":"altair-graphql","versions":[{"status":"affected","version":">= 7.2.4, < 8.5.8"}]},{"product":"altair-fastify-plugin","source":"CNA: GitHub_M","vendor":"altair-graphql","versions":[{"status":"affected","version":">= 7.2.4, < 8.5.8"}]},{"product":"altair-koa-middleware","source":"CNA: GitHub_M","vendor":"altair-graphql","versions":[{"status":"affected","version":">= 7.2.4, < 8.5.8"}]},{"product":"altair-static","source":"CNA: GitHub_M","vendor":"altair-graphql","versions":[{"status":"affected","version":">= 7.2.4, < 8.5.8"}]},{"ecosystem":"npm","packageName":"altair-static","product":"altair-static","source":"GitHub GHSA-752m-7p75-49gf","vendor":"","versions":[{"status":"affected","version":"7.2.4 <=> 8.5.7","versionType":"GitHub advisory range"}]},{"ecosystem":"npm","packageName":"altair-express-middleware","product":"altair-express-middleware","source":"GitHub GHSA-752m-7p75-49gf","vendor":"","versions":[{"status":"affected","version":"7.2.4 <=> 8.5.7","versionType":"GitHub advisory range"}]},{"ecosystem":"npm","packageName":"altair-koa-middleware","product":"altair-koa-middleware","source":"GitHub GHSA-752m-7p75-49gf","vendor":"","versions":[{"status":"affected","version":"7.2.4 <=> 8.5.7","versionType":"GitHub advisory range"}]},{"ecosystem":"npm","packageName":"altair-fastify-plugin","product":"altair-fastify-plugin","source":"GitHub GHSA-752m-7p75-49gf","vendor":"","versions":[{"status":"affected","version":"7.2.4 <=> 8.5.7","versionType":"GitHub advisory range"}]}],"cveId":"CVE-2026-110802","cwes":["CWE-79","CWE-829"],"description":"Altair is a GraphQL client for all platforms. From 7.2.4 until 8.5.8, packages/altair-iframe-sandbox/src/main.ts reads plugin_sandbox_opts from the iframe-sandbox query string and passes attacker-controlled scriptUrls to injectScript() in packages/altair-core/src/utils/inject.ts, which creates script elements in the page. The intended parent iframe flow places the page in an iframe with sandbox allow-scripts and without allow-same-origin, but direct navigation to a crafted iframe-sandbox URL omits that isolation and executes the supplied script in the origin serving Altair. Exploitation requires a victim to open the crafted URL, and the resulting script can access script-readable storage and make same-origin requests according to the deployment's authentication and cookie controls. This issue is fixed in version 8.5.8.","epss":{"date":"2026-11-09","percentile":0.12719,"score":0.00221},"exploits":[{"kind":"exploit","source":"ADP: CISA-ADP","url":"https://github.com/altair-graphql/altair/security/advisories/GHSA-752m-7p75-49gf"}],"kev":null,"metrics":[{"score":6.1,"severity":"medium","source":"CNA: GitHub_M","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},{"score":6.1,"severity":"medium","source":"NVD: security-advisories@github.com","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"}],"modifiedAt":1794287861890,"publishedAt":1793911312499,"references":[{"source":"CNA: GitHub_M","tags":["x_refsource_CONFIRM"],"url":"https://github.com/altair-graphql/altair/security/advisories/GHSA-752m-7p75-49gf"},{"source":"CNA: GitHub_M","tags":["x_refsource_MISC"],"url":"https://github.com/altair-graphql/altair/commit/53a19183ce11ca147bb990c355e14ecb1dd7cd3e"},{"source":"CNA: GitHub_M","tags":["x_refsource_MISC"],"url":"https://github.com/altair-graphql/altair/commit/bdf422bdaaaf3186170ba7f22e22c259072133d9"},{"source":"CNA: GitHub_M","tags":["x_refsource_MISC"],"url":"https://github.com/altair-graphql/altair/releases/tag/v8.5.8"},{"source":"ADP: CISA-ADP","tags":["exploit"],"url":"https://github.com/altair-graphql/altair/security/advisories/GHSA-752m-7p75-49gf"},{"source":"security-advisories@github.com","tags":[],"url":"https://github.com/altair-graphql/altair/commit/53a19183ce11ca147bb990c355e14ecb1dd7cd3e"},{"source":"security-advisories@github.com","tags":[],"url":"https://github.com/altair-graphql/altair/commit/bdf422bdaaaf3186170ba7f22e22c259072133d9"},{"source":"security-advisories@github.com","tags":[],"url":"https://github.com/altair-graphql/altair/releases/tag/v8.5.8"},{"source":"security-advisories@github.com","tags":[],"url":"https://github.com/altair-graphql/altair/security/advisories/GHSA-752m-7p75-49gf"},{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":[],"url":"https://github.com/altair-graphql/altair/security/advisories/GHSA-752m-7p75-49gf"},{"source":"GitHub Security Advisories","tags":["advisory"],"url":"https://github.com/altair-graphql/altair/security/advisories/GHSA-752m-7p75-49gf"}],"remediation":[{"kind":"fix","source":"GitHub GHSA-752m-7p75-49gf","text":"altair-static (npm): GitHub reports patched versions 8.5.8. Check the advisory for the affected release branch.","url":"https://github.com/altair-graphql/altair/security/advisories/GHSA-752m-7p75-49gf"},{"kind":"fix","source":"GitHub GHSA-752m-7p75-49gf","text":"altair-express-middleware (npm): GitHub reports patched versions 8.5.8. Check the advisory for the affected release branch.","url":"https://github.com/altair-graphql/altair/security/advisories/GHSA-752m-7p75-49gf"},{"kind":"fix","source":"GitHub GHSA-752m-7p75-49gf","text":"altair-koa-middleware (npm): GitHub reports patched versions 8.5.8. Check the advisory for the affected release branch.","url":"https://github.com/altair-graphql/altair/security/advisories/GHSA-752m-7p75-49gf"},{"kind":"fix","source":"GitHub GHSA-752m-7p75-49gf","text":"altair-fastify-plugin (npm): GitHub reports patched versions 8.5.8. Check the advisory for the affected release branch.","url":"https://github.com/altair-graphql/altair/security/advisories/GHSA-752m-7p75-49gf"}],"revision":"628ab7f62c5403e239dabc25c28ad675f9c944ed78f555d19a836d969f6433d4","sources":[{"modifiedAt":1794284308735,"name":"CNA: GitHub_M","retrievedAt":1794287307893,"url":"https://www.cve.org/CVERecord?id=CVE-2026-110802"},{"modifiedAt":1794287861890,"name":"NVD","retrievedAt":1794291346094,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-110802"},{"modifiedAt":1792181058000,"name":"GitHub Security Advisories","retrievedAt":1794085809650,"url":"https://github.com/altair-graphql/altair/security/advisories/GHSA-752m-7p75-49gf"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1794287329440,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-110802"}],"ssvc":{"assessedAt":1794284185942,"automatable":"no","exploitation":"poc","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"Altair: DOM-based XSS via attacker-controlled script URLs in the iframe sandbox","updatedAt":1794291346094}