CVE-2026-53167fuse: limit FUSE_NOTIFY_RETRIEVE to uptodate folios
- 5.5MediumCVSS base score
- 0.13%Exploitation in 30 daysEPSS · top 97% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: fuse: limit FUSE_NOTIFY_RETRIEVE to uptodate folios FUSE_NOTIFY_RETRIEVE must be limited to uptodate folios; !uptodate folios can contain uninitialized data. Since FUSE_NOTIFY_RETRIEVE is intended to only return data that is already in the page cache and not wait for data from the FUSE daemon, treat !uptodate folios as if they weren't present. This only has security impact on systems that don't enable automatic zero-initialization of all page allocations via CONFIG_INIT_ON_ALLOC_DEFAULT_ON or init_on_alloc=1.
Timeline
ID reserved
By Linux
- 16 days later
· 16 days later
Published
- 4 months later
· 4 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.13% · top 97% of all CVEs (15 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a – < feafe8ccb1584254f59fbd4946d6ca7ef1e3e99c
- affected 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a – < 651801d75ad0897dbd331b3cc6a4da3e78f60d42
- affected 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a – < 4e14f29473eda18fb2af082dd2fd4c12139862cd
- affected 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a – < 8bef2f840b43e0879478fe3aaa9ff2f0b80798a5
- affected 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a – < 68a9282d5ea5b8780d59122505ad633e6daede90
- affected 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a – < 56763afa013444a9d84ca1b74e4b7130942177ba
- affected 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a – < 1fb8735a3a4d894f8c1f90b741a3ab1d3817f9bd
- affected 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a – < 4e3d1b2c48ca6c55f1e9ca7f8dccc76f120f276c
- affected 2.6.36
- unaffected < 2.6.36
- unaffected 5.10.260 – ≤ 5.10.*
- unaffected 5.15.211 – ≤ 5.15.*
- unaffected 6.1.177 – ≤ 6.1.*
- unaffected 6.6.144 – ≤ 6.6.*
- unaffected 6.12.95 – ≤ 6.12.*
- unaffected 6.18.36 – ≤ 6.18.*
- unaffected 7.0.13 – ≤ 7.0.*
- unaffected 7.1 – ≤ *
References
References10
- https://git.kernel.org/stable/c/feafe8ccb1584254f59fbd4946d6ca7ef1e3e99c (opens in a new tab)
- https://git.kernel.org/stable/c/651801d75ad0897dbd331b3cc6a4da3e78f60d42 (opens in a new tab)
- https://git.kernel.org/stable/c/4e14f29473eda18fb2af082dd2fd4c12139862cd (opens in a new tab)
- https://git.kernel.org/stable/c/8bef2f840b43e0879478fe3aaa9ff2f0b80798a5 (opens in a new tab)
- https://git.kernel.org/stable/c/68a9282d5ea5b8780d59122505ad633e6daede90 (opens in a new tab)
- https://git.kernel.org/stable/c/56763afa013444a9d84ca1b74e4b7130942177ba (opens in a new tab)
- https://git.kernel.org/stable/c/1fb8735a3a4d894f8c1f90b741a3ab1d3817f9bd (opens in a new tab)
- https://git.kernel.org/stable/c/4e3d1b2c48ca6c55f1e9ca7f8dccc76f120f276c (opens in a new tab)
- https://project-zero.issues.chromium.org/issues/514653451 (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-39258 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-53167)Record last updated .