CVE Explorer
CVE-2026-34750
Payload is a free and open source headless content management system. Prior to version 3.78.0 in @payloadcms/storage-azure, @payloadcms/storage-gcs, @payloadcms/storage-r2, and @payloadcms/storage-s3, the client-upload signed-URL endpoints for S3, GCS, Azure, and R2 did not properly sanitize filenames. An attacker could craft filenames to escape the intended storage location. This issue has been patched in version 3.78.0 for @payloadcms/storage-azure, @payloadcms/storage-gcs, @payloadcms/storage
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"payload","vendor":"payloadcms","versions":[{"status":"affected","version":"< 3.78.0"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:1e3a96bdad24c31a3af487a118423c475b732353b7cfb3e7c6c87d146d7af6cd · sha256:76bf903d97f9de65… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:1e3a96bdad24c31a3af487a118423c475b732353b7cfb3e7c6c87d146d7af6cd · sha256:76bf903d97f9de65… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-22","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:1e3a96bdad24c31a3af487a118423c475b732353b7cfb3e7c6c87d146d7af6cd · sha256:76bf903d97f9de65… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"name":"https://github.com/payloadcms/payload/security/advisories/GHSA-frq9-7j6g-v74x","tags":["x_refsource_CONFIRM"],"url":"https://github.com/payloadcms/payload/security/advisories/GHSA-frq9-7j6g-v74x"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:1e3a96bdad24c31a3af487a118423c475b732353b7cfb3e7c6c87d146d7af6cd · sha256:76bf903d97f9de65… · /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.