7.8

CVE-2026-89497: linux

CVSS: 7.8v3.1HighReceived
AliasesUBUNTU-CVE-2026-89497DEBIAN-CVE-2026-89497
Published 11-09-2026Last modified 19-10-2026
Open JSON

Vulnerability summary

CVE-2026-89497 is a high (CVSS 7.8) vulnerability in linux. EPSS estimates a 0.13% chance of exploitation in the next 30 days, higher than 2.3% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.13%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
OPENSUSE-SU-2026:11880-1

Timeline

  1. 11-09-2026
    PublishedVulnerability first disclosed.
  2. 19-10-2026
    Last modifiedVulnerability information updated.

Description

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 metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.13%

Chance of exploitation in the next 30 days

Percentile

2%

Versus all other CVEs

30-day change

0.00 pp

From 0.13% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.13%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu168 products
  • linuxAll versions (No fix recorded)
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
  • linuxAll versions (No fix recorded) | < 6.1.190-1 | < 6.12.111-1 | < 7.2.6-1
  • linux-6.12< 6.12.111-1~deb12u1
Linux1 product
  • linux≥ f7be4ee07fb72a516563bc2870ef41fa589a964a, < 173bfd69696815bcf1c052f61cb69c26cca4e443 | ≥ f7be4ee07fb72a516563bc2870ef41fa589a964a, < 995f4d05589f87452a56672270af28918c8939c3 | ≥ f7be4ee07fb72a516563bc2870ef41fa589a964a, < 0ef38d53bca5ea1375fea0d3d11e9727df064b85 | ≥ f7be4ee07fb72a516563bc2870ef41fa589a964a, < ce748ae1181d0daf5dd0d2d906d5c1cc328c153b | ≥ f7be4ee07fb72a516563bc2870ef41fa589a964a, < 15d79c806231e62a7b746d3b42626810004e1b27 | ≥ f7be4ee07fb72a516563bc2870ef41fa589a964a, < 116d14f29a0524853c9316f32a2ac06cff5d4bf6 | ≥ f7be4ee07fb72a516563bc2870ef41fa589a964a, < 1774c5b3713add32fe15ab0d3db4b73355f94e35 | ≥ f7be4ee07fb72a516563bc2870ef41fa589a964a, < d410cd5303ec59c7cf23dd61423752ce8e9ecb59 | 4.6

3 vendors · 171 products

References

12 links
Show all 12 references