CVE-2026-63004

creationtimestamp| type| source ---|---|--- 2026-08-21 20:35:02+00:00| published-proof-of-concept| https://github.com/Unleash/unleash/security/advisories/GHSA-5vf6-jrqr-78fj 2026-08-22 11:31:40+00:00| seen| https://gist.github.com/alon710/d92488505ce17a941a9b8015b1dda8cf...

CVE-2026-63466

Unleash is an open-source feature management platform. Prior to 8.0.3, FeatureEventFormatterMd.format in src/lib/addons/feature-event-formatter-md.ts assigns Mustache.escape to an identity function before rendering action and path templates. Because Mustache.escape is process-wide, the assignment...

CVE-2026-63462

Unleash is an open-source feature management platform. Prior to 7.5.2, 7.6.5, and 8.0.2, the shared OpenAPI validation error path in src/lib/error/bad-data-error.ts passes a raw request value from lodash.get to JSON.stringify in genericErrorMessage and fromOpenApiValidationErrors without guarding...

CVE-2026-63004

Unleash is an open-source feature management platform. Prior to 7.5.2, 7.6.5, and 8.0.2, the addon and integration subsystem passes the operator-controlled parameters.url value from src/lib/addons/webhook.ts and the Slack, Microsoft Teams, Datadog, and New Relic integrations to Addon.fetchRetry i...

Unleash: Global Mustache.escape override disables HTML escaping process-wide, enabling Slack/Teams link-injection via unrestricted username

Vulnerability Details File: src/lib/addons/feature-event-formatter-md.ts Line: 355 in v8.0.1; format method Root Cause FeatureEventFormatterMd.format does: ts Mustache.escape = text = text; const text = Mustache.renderaction, context; mustache pinned ^4.2.0, confirmed installed 4.2.0 keeps escape...

NPM: Unleash: Global Mustache.escape override disables HTML escaping process-wide, enabling Slack/Teams link-injection via unrestricted username

NPM: Unleash: Global Mustache.escape override disables HTML escaping process-wide, enabling Slack/Teams link-injection via unrestricted username vulnerability discovered by ? in WordPress Npm unleash-server versions 8.0.3...

NPM: Unleash: Addon webhook URL is dialed server-side with no internal-address filtering, enabling SSRF to internal services / cloud metadata and exfiltration of configured request headers

NPM: Unleash: Addon webhook URL is dialed server-side with no internal-address filtering, enabling SSRF to internal services / cloud metadata and exfiltration of configured request headers vulnerability discovered by ? in WordPress Npm unleash-server versions 7.5.2...

NPM: Unleash: Unauthenticated single-request DoS via OpenAPI validation error formatter

NPM: Unleash: Unauthenticated single-request DoS via OpenAPI validation error formatter vulnerability discovered by ? in WordPress Npm unleash-server versions 7.5.2...

CVE-2026-63466 Unleash: Global Mustache.escape override disables HTML escaping process-wide, enabling Slack/Teams link-injection via unrestricted username

Unleash is an open-source feature management platform. Prior to 8.0.3, FeatureEventFormatterMd.format in src/lib/addons/feature-event-formatter-md.ts assigns Mustache.escape to an identity function before rendering action and path templates. Because Mustache.escape is process-wide, the assignment...

EUVD-2026-64042

Unleash is an open-source feature management platform. Prior to 8.0.3, FeatureEventFormatterMd.format in src/lib/addons/feature-event-formatter-md.ts assigns Mustache.escape to an identity function before rendering action and path templates. Because Mustache.escape is process-wide, the assignment...

CVE-2026-63466

Unleash (open-source feature management platform) is affected by a global Mustache.escape override in versions prior to 8.0.3 . The FeatureEventFormatterMd.format function in feature-event-formatter-md.ts assigns Mustache.escape to an identity function before rendering templates. Because this ass...

CVE-2026-63466 Unleash: Global Mustache.escape override disables HTML escaping process-wide, enabling Slack/Teams link-injection via unrestricted username

Unleash is an open-source feature management platform. Prior to 8.0.3, FeatureEventFormatterMd.format in src/lib/addons/feature-event-formatter-md.ts assigns Mustache.escape to an identity function before rendering action and path templates. Because Mustache.escape is process-wide, the assignment...

CVE-2026-63462 Unleash: Unauthenticated single-request DoS via OpenAPI validation error formatter

Unleash is an open-source feature management platform. Prior to 7.5.2, 7.6.5, and 8.0.2, the shared OpenAPI validation error path in src/lib/error/bad-data-error.ts passes a raw request value from lodash.get to JSON.stringify in genericErrorMessage and fromOpenApiValidationErrors without guarding...

CVE-2026-63462

Unleash , an open-source feature management platform, is vulnerable to an unauthenticated denial-of-service in versions prior to 7.5.2, 7.6.5, and 8.0.2 . The root cause is in the shared OpenAPI validation error path (src/lib/error/bad-data-error.ts), which passes a raw request value from lodash....

CVE-2026-63462 Unleash: Unauthenticated single-request DoS via OpenAPI validation error formatter

Unleash is an open-source feature management platform. Prior to 7.5.2, 7.6.5, and 8.0.2, the shared OpenAPI validation error path in src/lib/error/bad-data-error.ts passes a raw request value from lodash.get to JSON.stringify in genericErrorMessage and fromOpenApiValidationErrors without guarding...

EUVD-2026-64041

Unleash is an open-source feature management platform. Prior to 7.5.2, 7.6.5, and 8.0.2, the shared OpenAPI validation error path in src/lib/error/bad-data-error.ts passes a raw request value from lodash.get to JSON.stringify in genericErrorMessage and fromOpenApiValidationErrors without guarding...

EUVD-2026-64040

Unleash is an open-source feature management platform. Prior to 7.5.2, 7.6.5, and 8.0.2, the addon and integration subsystem passes the operator-controlled parameters.url value from src/lib/addons/webhook.ts and the Slack, Microsoft Teams, Datadog, and New Relic integrations to Addon.fetchRetry i...

CVE-2026-63004

Unleash , an open-source feature management platform, is vulnerable to Server-Side Request Forgery (SSRF) in its addon and integration subsystem. The operator-controlled parameters.url value from src/lib/addons/webhook.ts and the Slack, Microsoft Teams, Datadog, and New Relic integrations is pass...

CVE-2026-63004 Unleash: Addon webhook URL is dialed server-side with no internal-address filtering, enabling SSRF to internal services / cloud metadata and exfiltration of configured request headers

Unleash is an open-source feature management platform. Prior to 7.5.2, 7.6.5, and 8.0.2, the addon and integration subsystem passes the operator-controlled parameters.url value from src/lib/addons/webhook.ts and the Slack, Microsoft Teams, Datadog, and New Relic integrations to Addon.fetchRetry i...

CVE-2026-63004 Unleash: Addon webhook URL is dialed server-side with no internal-address filtering, enabling SSRF to internal services / cloud metadata and exfiltration of configured request headers

Unleash is an open-source feature management platform. Prior to 7.5.2, 7.6.5, and 8.0.2, the addon and integration subsystem passes the operator-controlled parameters.url value from src/lib/addons/webhook.ts and the Slack, Microsoft Teams, Datadog, and New Relic integrations to Addon.fetchRetry i...