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VulnerabilityPublished

CVE-2026-64678: nitrite-java · Deserialization of Untrusted Data

Affects nitrite-javaSource CVE Database V5

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Not known to be exploited · CVSS 9.8 Critical : upgrade to 4.4.1 as a priority.

Data as of 11 Nov 2026, 04:48 UTC

CVSS 3.1 base score
9.8Critical
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (GitHub_M)CVSS 3.19.8
Patch
Available – fixed in 4.4.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 11 Nov 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 10 Nov 2026.

What to do

Upgrade nitrite-java to 4.4.1.

Affected software

ProductAffectedFixed in
nitritenitrite-javaAffected
  • <4.4.1
Fixed in
  • 4.4.1

AI-suggested

Upgrade nitrite-java to version 4.4.1 or later, where this unsafe deserialization vulnerability has been fixed. No other mitigation is indicated or required as the patch addresses the root cause.

Description

CVE-2026-64678 is a critical deserialization vulnerability in nitrite-java versions prior to 4.4.1. The vulnerability arises from unsafe deserialization of legacy database files without any class allowlist or filtering, allowing arbitrary classes on the application classpath to be instantiated during deserialization. This can enable remote code execution if a suitable gadget class is present. The issue is fixed in version 4.4.1.

References

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