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CVE-2026-40489VulnerabilityPublished Updated

SUSE · Security update for editorconfig-core-c

Affects SUSESource GCVE Database

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Authoritative record:CVE-2026-40489· High 8.6

Not known to be exploited · CVSS 8.6 High : upgrade SUSE editorconfig-core-c to 0.12.11 soon.

Data as of 31 Oct 2026, 20:20 UTC

CVSS 4.0 base score
8.6High
How severe the flaw is on the 0–10 CVSS scale.
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 0.12.11
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 18 Apr 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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 31 Oct 2026.

What to do

Upgrade editorconfig-core-c and editorconfig/editorconfig-core-c to 0.12.11.

Affected software

ProductAffectedFixed in
editorconfigeditorconfig-core-cAffected
  • <0.12.11
Fixed in
  • 0.12.11
GitHubeditorconfig/editorconfig-core-cpkg:github/editorconfig/editorconfig-core-cOther threatsAffected
  • <0.12.11
Fixed in
  • 0.12.11

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A security update has been released to fix the buffer overflow vulnerability. Users of editorconfig-core-c should apply the update provided by the SUSE Product Security Team to remediate this issue. Patch status is confirmed by the update announcement.

Description

A security update for editorconfig-core-c addresses a buffer overflow vulnerability identified as CVE-2026-40489. This vulnerability involves the l_pattern buffer and has been assigned a medium severity rating. The update fixes this issue to prevent potential exploitation.

References

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