VulnerabilityPublished 25 Sep 2026Updated 19 Oct 2026

CVE-2026-98005: Linux kernel · erofs: delimit inode_share cache key components

Affects Linux kernelSource CVE Database V5

Not known to be exploited : upgrade to 16322a67336cfeea0af4b05206ef8d0e0eda55bb or 96bf9831fbf423b8104f7948cd8fe7007ecfb46c when convenient.

Data as of 26 Oct 2026, 12:55 UTC

Severity

Unrated

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS: 0.1% chance of exploitation in 30 days – higher than 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 16322a67336cfeea0af4b05206ef8d0e0eda55bb, 96bf9831fbf423b8104f7948cd8fe7007ecfb46c

Exploitation evidence

Disclosed: evidence found.
CVE published 25 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade Linux kernel to 16322a67336cfeea0af4b05206ef8d0e0eda55bb or 96bf9831fbf423b8104f7948cd8fe7007ecfb46c.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ e0bf7d1c074dc4252223ae897560345ccc24100d, < 16322a67336cfeea0af4b05206ef8d0e0eda55bb	Fixed in 16322a67336cfeea0af4b05206ef8d0e0eda55bb
LinuxLinux	Affected ≥ e0bf7d1c074dc4252223ae897560345ccc24100d, < 96bf9831fbf423b8104f7948cd8fe7007ecfb46c	Fixed in 96bf9831fbf423b8104f7948cd8fe7007ecfb46c
LinuxLinux	Affected =7.0	Fixed in–

Description

In the Linux kernel, the following vulnerability has been resolved: erofs: delimit inode_share cache key components Previously, inode_share keys were encoded as follows: fingerprint || domain_id It would be better to have a separator between the fingerprint and domain ID so that the fingerprint won't be parsed as part of a domain ID. Change the key encoding as follows: domain_id || '\0' || fingerprint Since domain_id is a NUL-terminated string, this makes the in-memory key indices unambiguous.

References

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