CVE-2026-24794: CardboardPowered cardboard · Memory Buffer Overflow
Affects CardboardPowered cardboardSource CVE Database V5
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
- 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:RedExploitation evidence
Disclosed: evidence found.
CVE published 27 Jan 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 26 Oct 2026.
What to do
Upgrade cardboard and cardboardpowered/cardboard to 1.21.4.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| CardboardPoweredcardboard | Affected
| Fixed in
|
GitHubcardboardpowered/cardboardpkg:github/cardboardpowered/cardboardOther threats | Affected
| Fixed in
|
GitHubcardboardpkg:github/cardboardOther 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
- Immediately upgrade all instances of CardboardPowered cardboard to version 1.21.4 or later once the patch is released.
- 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.
- Conduct thorough code audits and static analysis on custom integrations or forks of cardboard to identify similar buffer handling issues.
- Implement network segmentation and strict access controls to limit exposure of cardboard services to untrusted networks.
- Monitor network and host logs for anomalous behavior indicative of exploitation attempts, such as unexpected code execution or memory corruption errors.
- Educate development and security teams about secure coding practices related to buffer management to prevent future vulnerabilities.
- 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.