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VulnerabilityPublished

CVE-2026-24794: CardboardPowered cardboard · Memory Buffer Overflow

Affects CardboardPowered cardboardSource CVE Database V5

0

Not known to be exploited · CVSS 9.2 Critical : upgrade to 1.21.4 as a priority.

Data as of 26 Oct 2026, 14:05 UTC

CVSS 4.0 base score
9.2Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 22% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 1.21.4
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/AU:Y/R:A/V:C/RE:M/U:Red

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 27 Jan 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: 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 26 Oct 2026.

What to do

Upgrade cardboard and cardboardpowered/cardboard to 1.21.4.

Affected software

ProductAffectedFixed in
CardboardPoweredcardboardAffected
  • <1.21.4
Fixed in
  • 1.21.4
GitHubcardboardpowered/cardboardpkg:github/cardboardpowered/cardboardOther threatsAffected
  • <1.21.4
Fixed in
  • 1.21.4
GitHubcardboardpkg:github/cardboardOther threatsAffected
  • <1.21.4
Fixed in
  • 1.21.4

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

  1. Immediately upgrade all instances of CardboardPowered cardboard to version 1.21.4 or later once the patch is released.
  2. If you cannot patch yet, employ runtime memory protection mechanisms such as Address Space Layout Randomization (ASLR), Data Execution Prevention (DEP), and Control Flow Integrity (CFI) to reduce exploitation risk.
  3. Conduct thorough code audits and static analysis on custom integrations or forks of cardboard to identify similar buffer handling issues.
  4. Implement network segmentation and strict access controls to limit exposure of cardboard services to untrusted networks.
  5. Monitor network and host logs for anomalous behavior indicative of exploitation attempts, such as unexpected code execution or memory corruption errors.
  6. Educate development and security teams about secure coding practices related to buffer management to prevent future vulnerabilities.
  7. Engage with the vendor or open-source community to track patch releases and vulnerability disclosures actively.

Description

Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in CardboardPowered cardboard (src/main/java/org/cardboardpowered/impl/world modules). This vulnerability is associated with program files WorldImpl.Java. This issue affects cardboard: before 1.21.4.

References

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