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VulnerabilityPublished

CVE-2026-117680: lud jsv · Unchecked Error Condition

Affects lud jsvSource CVE Database V5

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Not known to be exploited · CVSS 2.1 Low : upgrade to 0.26.2 when convenient.

Data as of 1 Nov 2026, 13:58 UTC

CVSS 4.0 base score
2.1Low
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (EEF)CVSS 4.02.1
Patch
Available – fixed in 0.26.2, defdb8a68ac7f218aa5dfe85190d484017cb8817
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 1 Nov 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 1 Nov 2026.

What to do

Upgrade jsv to 0.26.2; jsv to defdb8a68ac7f218aa5dfe85190d484017cb8817.

Affected software

ProductAffectedFixed in
ludjsvAffected
  • >=0.1.0 <0.26.2
Fixed in
  • 0.26.2
jsvlud/jsvAffected
  • ≥ 302a5d0803468f81a1cf08e3b67d8b14cee759ca, < defdb8a68ac7f218aa5dfe85190d484017cb8817
Fixed in
  • defdb8a68ac7f218aa5dfe85190d484017cb8817
Hexjsvpkg:hex/jsvOther threatsAffected
  • >=0.1.0 <0.26.2
Fixed in
  • 0.26.2

CPE configurations (1)

  • cpe:2.3:a:lud:jsv:*:*:*:*:*:*:*:*

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

AI-suggested

Upgrade lud jsv to version 0.26.2 or later, where this issue is fixed. No other mitigation is required as the vulnerability is addressed by the official patch.

Description

CVE-2026-117680 is a low-severity vulnerability in the lud jsv library affecting versions from 0.1.0 up to but not including 0.26.2. It involves an improper check for unusual or exceptional conditions in schema validation related to regex backtracking limits. An unauthenticated remote attacker can bypass schema validation by exploiting regex patterns that cause heavy backtracking, leading to incorrect acceptance of invalid data. The issue is fixed in version 0.26.2.

References

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