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CVE-2026-65629VulnerabilityPublished

Microsoft · Weak PBKDF2 parameters for password-encrypted private-key export in jose

Affects MicrosoftSource GCVE Database

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Authoritative record:CVE-2026-65629· High 7.4

Not known to be exploited · CVSS 7.4 High.

Data as of 31 Oct 2026, 08:20 UTC

CVSS 4.0 base score
7.4High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (EEF)CVSS 4.07.4
EPSS
0.06% chance of exploitation in 30 days – higher than 0% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 26 Oct 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 30 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
npmjosepkg:npm/joseOther threatsAffected
  • =3.0
Fixed in–

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

AI-suggested

Users should monitor for updates from the vendor or project maintainers regarding improved PBKDF2 parameterization or fixes.

Description

This vulnerability involves weak PBKDF2 parameters used for password-encrypted private-key export in the jose library version 3.0. Weak PBKDF2 parameters can reduce the effectiveness of password-based key derivation, potentially making it easier for attackers to recover passwords from encrypted private keys.

References

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