01 Record

CVE-2026-31610

ksmbd: fix mechToken leak when SPNEGO decode fails after token alloc

UnratedPUBLISHEDCNA: Linux

CNA base scoreUnratedNo CNA CVSS vector

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02 Description

ksmbd: fix mechToken leak when SPNEGO decode fails after token alloc

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 0.14% probability of exploitation activity in the next 30 days.
EPSS percentile: Ranks above 3.5% of scored records. A rank, not a probability.
NVD base score: 5.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD analysis status: Modified. NVD last modified this record on 2026-07-24.
Red Hat severity: No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2026-04-24 14:42Z4 MO AGO

Last updated

2026-07-24 14:33Z1 MO AGO

Reserved

2026-03-09

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-401Missing Release of Memory after Effective LifetimeVariant
CWE-772Missing Release of Resource after Effective LifetimeBase

Data version

5.2

Document digest

47381411cad8a820bbadf3919d656fa6d2f570471f20befe0fb3c3a86dd434bf

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxfad4161b5cd01a24202234976ebbb133f7adc0b5 to < ae9cdb29efed20ffdee9ff3b0bb72fb369c353da, fad4161b5cd01a24202234976ebbb133f7adc0b5 to < bd4a7fb04f06f419b0e93d8b52fe32067eb312d1, fad4161b5cd01a24202234976ebbb133f7adc0b5 to < 745a535461bbb90a56d9357573c9f97a5c12abe1, fad4161b5cd01a24202234976ebbb133f7adc0b5 to < dd577cb55588ec3fbc66af3621280306601c4192, fad4161b5cd01a24202234976ebbb133f7adc0b5 to < dd53414e301beb915fe672dc4c4a51bafb917604, fad4161b5cd01a24202234976ebbb133f7adc0b5 to < 269c800a7a7e363459291885b35f7bc72e231ed6, fad4161b5cd01a24202234976ebbb133f7adc0b5 to < 6c8c44e6553b9f072f62d9875e567766eb293162, fad4161b5cd01a24202234976ebbb133f7adc0b5 to < ad0057fb91218914d6c98268718ceb9d59b388e1, 5.15—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/ae9cdb29efed20ffdee9ff3b0bb72fb369c353da
git.kernel.orghttps://git.kernel.org/stable/c/bd4a7fb04f06f419b0e93d8b52fe32067eb312d1
git.kernel.orghttps://git.kernel.org/stable/c/745a535461bbb90a56d9357573c9f97a5c12abe1
git.kernel.orghttps://git.kernel.org/stable/c/dd577cb55588ec3fbc66af3621280306601c4192
git.kernel.orghttps://git.kernel.org/stable/c/dd53414e301beb915fe672dc4c4a51bafb917604
git.kernel.orghttps://git.kernel.org/stable/c/269c800a7a7e363459291885b35f7bc72e231ed6
git.kernel.orghttps://git.kernel.org/stable/c/6c8c44e6553b9f072f62d9875e567766eb293162
git.kernel.orghttps://git.kernel.org/stable/c/ad0057fb91218914d6c98268718ceb9d59b388e1

01 Record index

CVE-2026-31610

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2026-31610

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References