CVE-2026-52843

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-52843
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-52843.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-52843
Aliases
  • GHSA-36mm-v3c2-24cc
Published
2026-07-15T16:16:07Z
Modified
2026-10-28T02:30:29Z
Severity
  • 9.3 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N CVSS Calculator
Summary
Lightpanda: fetch() and XMLHttpRequest attach session cookies to cross-origin requests regardless of credentials mode
Details

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.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-346"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52843.json"
}
References

Affected packages

Git / github.com/lightpanda-io/browser

Affected ranges

Type
GIT
Repo
https://github.com/lightpanda-io/browser
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
b2b1302fa2638bcc295c6ad0d9a71bf9aa75adb1
Fixed
2cdaac780bed65db98bbb6ed2ad5bc6011863c76
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "0.2.9"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StringRangeExpression"
        },
        {
            "range": [
                {
                    "fixed": "2cdaac780bed65db98bbb6ed2ad5bc6011863c76"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "original_tag": "0.2.9",
            "range": [
                {
                    "fixed": "b2b1302fa2638bcc295c6ad0d9a71bf9aa75adb1"
                }
            ],
            "source": "REFERENCES_TAG"
        }
    ]
}

Affected versions

0.*
0.2.7
0.2.8
Other
alpha
beta
nightly
v0.*
v0.2.0
v0.2.1
v0.2.2
v0.2.3
v0.2.4
v0.2.5
v0.2.6

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-52843.json"