CVE Explorer
CVE-2026-52791
fuse-overlayfs is an implementation of overlayfs in FUSE for rootless containers. Prior to 1.17, the release-1.x C branch preserves SUID and SGID mode bits in main.c during open(O_TRUNC) and truncate handling on a copied-up file, allowing a low-privileged process to leave the upper-layer file with mode 4777. This issue is fixed in version 1.17.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"fuse-overlayfs","vendor":"containers","versions":[{"status":"affected","version":"< 1.17"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:2bd6c2abecdbfd1f285bf91114cbba0956e879cdf0a38b2cf1bdc6773d54b6d0 · sha256:c4429e7d68909db3… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"LOCAL","baseScore":2,"baseSeverity":"LOW","privilegesRequired":"LOW","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW"},"metric_type":"cvssV4_0"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:2bd6c2abecdbfd1f285bf91114cbba0956e879cdf0a38b2cf1bdc6773d54b6d0 · sha256:c4429e7d68909db3… · /containers/cna/metrics/0/cvssV4_0
CWE assertions
1 source assertion{"cweId":"CWE-266","description":"CWE-266: Incorrect Privilege Assignment","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:2bd6c2abecdbfd1f285bf91114cbba0956e879cdf0a38b2cf1bdc6773d54b6d0 · sha256:c4429e7d68909db3… · /containers/cna/problemTypes/0/descriptions/0
Source references
4 source assertions{"name":"https://github.com/containers/fuse-overlayfs/commit/97e0d968a782fc259ebde112db1e9b9ff1ad724f","tags":["x_refsource_MISC"],"url":"https://github.com/containers/fuse-overlayfs/commit/97e0d968a782fc259ebde112db1e9b9ff1ad724f"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:2bd6c2abecdbfd1f285bf91114cbba0956e879cdf0a38b2cf1bdc6773d54b6d0 · sha256:c4429e7d68909db3… · /containers/cna/references/1
{"name":"https://github.com/containers/fuse-overlayfs/releases/tag/v1.17","tags":["x_refsource_MISC"],"url":"https://github.com/containers/fuse-overlayfs/releases/tag/v1.17"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:2bd6c2abecdbfd1f285bf91114cbba0956e879cdf0a38b2cf1bdc6773d54b6d0 · sha256:c4429e7d68909db3… · /containers/cna/references/2
{"name":"https://github.com/containers/fuse-overlayfs/security/advisories/GHSA-2cc4-p72c-v85h","tags":["x_refsource_CONFIRM"],"url":"https://github.com/containers/fuse-overlayfs/security/advisories/GHSA-2cc4-p72c-v85h"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:2bd6c2abecdbfd1f285bf91114cbba0956e879cdf0a38b2cf1bdc6773d54b6d0 · sha256:c4429e7d68909db3… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/containers/fuse-overlayfs/security/advisories/GHSA-2cc4-p72c-v85h"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:2bd6c2abecdbfd1f285bf91114cbba0956e879cdf0a38b2cf1bdc6773d54b6d0 · sha256:c4429e7d68909db3… · /containers/adp/0/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.