CVE-2026-5086: NERDVANA Crypt::SecretBuffer · Timing Side Channel
Affects NERDVANA Crypt::SecretBufferSource CVE Database V5
Not known to be exploited · CVSS 7.5 High : upgrade to 0.019 soon.
Data as of 30 Oct 2026, 11:52 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 33% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 0.019
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NExploitation evidence
Disclosed: evidence found.
CVE published 13 Apr 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
Upgrade Crypt::SecretBuffer and Crypt-SecretBuffer to 0.019.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| NERDVANACrypt::SecretBuffer | Affected
| Fixed in
|
GitHubCrypt-SecretBufferpkg:github/Crypt-SecretBufferOther 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
If you cannot patch yet, users should avoid using vulnerable versions of Crypt::SecretBuffer for sensitive secret comparisons or implement additional mitigations such as constant-time comparison functions.
Description
Crypt::SecretBuffer versions before 0.019 for Perl is suseceptible to timing attacks. For example, if Crypt::SecretBuffer was used to store and compare plaintext passwords, then discrepencies in timing could be used to guess the secret password.