High 7.8Published Sep 11, 2026

CVE-2026-89497orangefs: skip leading spaces before parsing client debug masks

Updated under an hour ago (Oct 27, 2026, 10:40 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: orangefs: skip leading spaces before parsing client debug masks orangefs_prepare_cdm_array() sizes each client debug keyword buffer with strcspn(cds_head, " "), but then parses the keyword with %s. The %s conversion skips leading whitespace, while strcspn() does not. If a client debug entry starts with a space, the allocation can be sized for an empty keyword while sscanf() copies the following non-empty token. This can write past the end of the allocated keyword buffer. Skip leading spaces before computing the keyword length so the allocation matches the string parsed by sscanf().

CVSS: 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Received
Record last updated: Oct 19, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from f7be4ee07fb72a516563bc2870ef41fa589a964a before 173bfd69696815bcf1c052f61cb69c26cca4e443; from f7be4ee07fb72a516563bc2870ef41fa589a964a before 995f4d05589f87452a56672270af28918c8939c3; from f7be4ee07fb72a516563bc2870ef41fa589a964a before 0ef38d53bca5ea1375fea0d3d11e9727df064b85; from f7be4ee07fb72a516563bc2870ef41fa589a964a before ce748ae1181d0daf5dd0d2d906d5c1cc328c153b; from f7be4ee07fb72a516563bc2870ef41fa589a964a before 15d79c806231e62a7b746d3b42626810004e1b27; from f7be4ee07fb72a516563bc2870ef41fa589a964a before 116d14f29a0524853c9316f32a2ac06cff5d4bf6; from f7be4ee07fb72a516563bc2870ef41fa589a964a before 1774c5b3713add32fe15ab0d3db4b73355f94e35; from f7be4ee07fb72a516563bc2870ef41fa589a964a before d410cd5303ec59c7cf23dd61423752ce8e9ecb59	CNA record

References

References

https://git.kernel.org/stable/c/173bfd69696815bcf1c052f61cb69c26cca4e443
https://git.kernel.org/stable/c/995f4d05589f87452a56672270af28918c8939c3
https://git.kernel.org/stable/c/0ef38d53bca5ea1375fea0d3d11e9727df064b85
https://git.kernel.org/stable/c/ce748ae1181d0daf5dd0d2d906d5c1cc328c153b
https://git.kernel.org/stable/c/15d79c806231e62a7b746d3b42626810004e1b27
https://git.kernel.org/stable/c/116d14f29a0524853c9316f32a2ac06cff5d4bf6
https://git.kernel.org/stable/c/1774c5b3713add32fe15ab0d3db4b73355f94e35
https://git.kernel.org/stable/c/d410cd5303ec59c7cf23dd61423752ce8e9ecb59

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.