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VulnerabilityPublished Updated

CVE-2026-5086: NERDVANA Crypt::SecretBuffer · Timing Side Channel

Affects NERDVANA Crypt::SecretBufferSource CVE Database V5

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Not known to be exploited · CVSS 7.5 High : upgrade to 0.019 soon.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.
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:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 13 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 30 Oct 2026.

What to do

Upgrade Crypt::SecretBuffer and Crypt-SecretBuffer to 0.019.

Affected software

ProductAffectedFixed in
NERDVANACrypt::SecretBufferAffected
  • <0.019
Fixed in
  • 0.019
GitHubCrypt-SecretBufferpkg:github/Crypt-SecretBufferOther threatsAffected
  • <0.019
Fixed in
  • 0.019

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.

References

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