Microsoft · Weak PBKDF2 parameters for password-encrypted private-key export in jose
Affects MicrosoftSource GCVE Database
Not known to be exploited · CVSS 7.4 High.
Data as of 31 Oct 2026, 08:20 UTC
Thin evidence
One scorer or none| CNA (EEF) | CVSS 4.0 | 7.4 |
|---|
- 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:NExploitation evidence
Disclosed: evidence found.
CVE published 26 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
| Product | Affected | Fixed in |
|---|---|---|
npmjosepkg:npm/joseOther threats | Affected
| 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.