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CVE-2026-73086VulnerabilityPublished Updated

Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update

Affects Red HatSource GCVE Database

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Authoritative record:CVE-2026-73086· High 7.4

Not known to be exploited · CVSS 7.4 High : upgrade Red Hat to 5.1.11 or 3.3.12 soon.

Data as of 30 Oct 2026, 00:06 UTC

CVSS 3.1 base score
7.4High
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 5.1.11, 3.3.12
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 11 Aug 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 29 Oct 2026.

What to do

Upgrade nanoid to 5.1.11 or 3.3.12.

Affected software

ProductAffectedFixed in
ainanoidAffected
  • >=4.0.0 <5.1.11
Fixed in
  • 5.1.11
ainanoidAffected
  • <3.3.12
Fixed in
  • 3.3.12

AI-suggested

As per the Red Hat advisory, no mitigation or patch currently meets the criteria for ease of use, applicability, or stability for widespread deployment. If you cannot patch yet, consider limiting exposure of affected components and applying compensating controls where feasible. Customers with Red Hat Technical Account Managers (TAM) can seek direct guidance on this vulnerability.

Description

CVE-2026-73086 is a vulnerability in the nanoid JavaScript library used for generating unique string IDs. It involves an integer overflow in the nanoid(size) function that causes the internal random number generator to become predictable. This predictability can lead to the generation of identical session tokens, CSRF tokens, and API keys, potentially allowing attackers to bypass security mechanisms relying on unique identifiers. The vulnerability is rated as important but not critical due to specific conditions required for exploitation. Red Hat has issued a security advisory for this vulnerability affecting the prometheus3.5 RPM in Red Hat Hardened Images.

References

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