CVE Explorer

CVE-2026-52843

Lightpanda is a headless browser designed for AI and automation. Prior to 0.2.9, Lightpanda fetch() and XMLHttpRequest unconditionally attached session cookies to every HTTP request, ignoring credentials: omit, credentials: same-origin, credentials: include, and XMLHttpRequest.withCredentials, allowing an attacker-controlled origin in a Lightpanda session to issue authenticated cross-origin requests against a victim origin. This issue is fixed in version 0.2.9.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:9261b3bb1c43fcff831f14784e5604505c6944abde05ebd9eb419d2d05d75018

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"browser","vendor":"lightpanda-io","versions":[{"status":"affected","version":"< 0.2.9"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:e0ba1d9aa82f254d625960c0459376050bdcce18ac8effb7c2d8d417aeb21cd2 · sha256:221b24fdd8b317ac… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":9.3,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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:e0ba1d9aa82f254d625960c0459376050bdcce18ac8effb7c2d8d417aeb21cd2 · sha256:221b24fdd8b317ac… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-346","description":"CWE-346: Origin Validation Error","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:e0ba1d9aa82f254d625960c0459376050bdcce18ac8effb7c2d8d417aeb21cd2 · sha256:221b24fdd8b317ac… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions

{"name":"https://github.com/lightpanda-io/browser/commit/2cdaac780bed65db98bbb6ed2ad5bc6011863c76","tags":["x_refsource_MISC"],"url":"https://github.com/lightpanda-io/browser/commit/2cdaac780bed65db98bbb6ed2ad5bc6011863c76"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:e0ba1d9aa82f254d625960c0459376050bdcce18ac8effb7c2d8d417aeb21cd2 · sha256:221b24fdd8b317ac… · /containers/cna/references/2

{"name":"https://github.com/lightpanda-io/browser/pull/2155","tags":["x_refsource_MISC"],"url":"https://github.com/lightpanda-io/browser/pull/2155"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:e0ba1d9aa82f254d625960c0459376050bdcce18ac8effb7c2d8d417aeb21cd2 · sha256:221b24fdd8b317ac… · /containers/cna/references/1

{"name":"https://github.com/lightpanda-io/browser/releases/tag/0.2.9","tags":["x_refsource_MISC"],"url":"https://github.com/lightpanda-io/browser/releases/tag/0.2.9"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:e0ba1d9aa82f254d625960c0459376050bdcce18ac8effb7c2d8d417aeb21cd2 · sha256:221b24fdd8b317ac… · /containers/cna/references/3

{"name":"https://github.com/lightpanda-io/browser/security/advisories/GHSA-36mm-v3c2-24cc","tags":["x_refsource_CONFIRM"],"url":"https://github.com/lightpanda-io/browser/security/advisories/GHSA-36mm-v3c2-24cc"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:e0ba1d9aa82f254d625960c0459376050bdcce18ac8effb7c2d8d417aeb21cd2 · sha256:221b24fdd8b317ac… · /containers/cna/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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