CVE Explorer

CVE-2026-31476

In the Linux kernel, the following vulnerability has been resolved: ksmbd: do not expire session on binding failure When a multichannel session binding request fails (e.g. wrong password), the error path unconditionally sets sess->state = SMB2_SESSION_EXPIRED. However, during binding, sess points to the target session looked up via ksmbd_session_lookup_slowpath() -- which belongs to another connection's user. This allows a remote attacker to invalidate any active session by simply sending a bi

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:30b44e2049d0cda6d11b31ab20bb9165151e9d4942f3fc95e211dd11654f08ca

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/smb/server/smb2pdu.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"4642ea35c03cf3d3558c009df4757cdb7af3f82d","status":"affected","version":"f5a544e3bab78142207e0242d22442db85ba1eff","versionType":"git"},{"lessThan":"f5300690c23c5ac860499bb37dbc09cf43fd62e6","status":"affected","version":"f5a544e3bab78142207e0242d22442db85ba1eff","versionType":"git"},{"lessThan":"6fafc4c4238e538969f1375f9ecdc6587c53f1cc","status":"affected","version":"f5a544e3bab78142207e02…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:317224b83ea2fca3bc6fe119a7c8f71962e6784b0fa50954909863d2a9ba4651 · sha256:1a45b1124f47e8e9… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["fs/smb/server/smb2pdu.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.15"},{"lessThan":"5.15","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.209","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.168","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.131","versionType":"semver"},{"lessTha…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:317224b83ea2fca3bc6fe119a7c8f71962e6784b0fa50954909863d2a9ba4651 · sha256:1a45b1124f47e8e9… · /containers/cna/affected/1

Affected products and versions

2 source assertions

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:317224b83ea2fca3bc6fe119a7c8f71962e6784b0fa50954909863d2a9ba4651 · sha256:1a45b1124f47e8e9… · /containers/cna/affected/0

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:317224b83ea2fca3bc6fe119a7c8f71962e6784b0fa50954909863d2a9ba4651 · sha256:1a45b1124f47e8e9… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion

{"metric":{"baseScore":8.2,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:317224b83ea2fca3bc6fe119a7c8f71962e6784b0fa50954909863d2a9ba4651 · sha256:1a45b1124f47e8e9… · /containers/cna/metrics/0/cvssV3_1

Source references

7 source assertions

{"url":"https://git.kernel.org/stable/c/1d1888b4a7aec518b707f6eca0bf08992c0e8da3"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:317224b83ea2fca3bc6fe119a7c8f71962e6784b0fa50954909863d2a9ba4651 · sha256:1a45b1124f47e8e9… · /containers/cna/references/3

{"url":"https://git.kernel.org/stable/c/4642ea35c03cf3d3558c009df4757cdb7af3f82d"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:317224b83ea2fca3bc6fe119a7c8f71962e6784b0fa50954909863d2a9ba4651 · sha256:1a45b1124f47e8e9… · /containers/cna/references/0

{"url":"https://git.kernel.org/stable/c/6fafc4c4238e538969f1375f9ecdc6587c53f1cc"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:317224b83ea2fca3bc6fe119a7c8f71962e6784b0fa50954909863d2a9ba4651 · sha256:1a45b1124f47e8e9… · /containers/cna/references/2

{"url":"https://git.kernel.org/stable/c/9bbb19d21ded7d78645506f20d8c44895e3d0fb9"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:317224b83ea2fca3bc6fe119a7c8f71962e6784b0fa50954909863d2a9ba4651 · sha256:1a45b1124f47e8e9… · /containers/cna/references/6

{"url":"https://git.kernel.org/stable/c/a897064a457056acb976e20e3007cdf553de340f"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:317224b83ea2fca3bc6fe119a7c8f71962e6784b0fa50954909863d2a9ba4651 · sha256:1a45b1124f47e8e9… · /containers/cna/references/4

{"url":"https://git.kernel.org/stable/c/e0e5edc81b241c70355217de7e120c97c3429deb"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:317224b83ea2fca3bc6fe119a7c8f71962e6784b0fa50954909863d2a9ba4651 · sha256:1a45b1124f47e8e9… · /containers/cna/references/5

{"url":"https://git.kernel.org/stable/c/f5300690c23c5ac860499bb37dbc09cf43fd62e6"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:317224b83ea2fca3bc6fe119a7c8f71962e6784b0fa50954909863d2a9ba4651 · sha256:1a45b1124f47e8e9… · /containers/cna/references/1

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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