Security readout for executives and security teams
Plain-English summary
CardboardPowered cardboard before 1.21.4 has a critical chunk-unloading memory-boundary flaw. The CVSS rating indicates an unauthenticated network attacker could cause major availability impact without user interaction. Public sources do not show active exploitation, but internet-facing game/server infrastructure should treat vulnerable versions as urgent to identify and update.
Executive priority
High priority for teams operating cardboard servers. The issue is critical and remotely reachable by CVSS, but there is no sourced evidence of active exploitation. Focus on rapid version verification and upgrading vulnerable instances.
Technical view
CVE-2026-24794 is a CWE-119 improper memory buffer bounds issue in cardboard’s world implementation modules, associated with WorldImpl.java. The CVE states versions before 1.21.4 are affected. CVSS 4.0 is 9.2, with network attack vector, low complexity, no privileges, no user interaction, and high availability impact.
Likely exposure
Exposure is likely limited to organizations running CardboardPowered cardboard versions before 1.21.4, especially reachable server deployments. The provided affected metadata is sparse, so validate installed versions directly against vendor materials and the CVE record.
Exploitation context
The source bundle does not report known active exploitation, and KEV is false. Severity is driven by remote, unauthenticated, low-complexity conditions and high availability impact. No public exploit status is established by the provided sources.
Researcher notes
Public detail is limited. The CVE identifies CWE-119 in src/main/java/org/cardboardpowered/impl/world modules and WorldImpl.java. The patch reference is GitHub PR #506. Do not assume exploitability beyond the CVSS and CVE statements without further vendor or code review.
Mitigation direction
- Upgrade CardboardPowered cardboard to 1.21.4 or later where applicable.
- Review the vendor patch PR for implementation details and release linkage.
- Prioritize externally reachable or high-availability servers first.
- If immediate upgrade is impossible, check vendor guidance for supported interim controls.
Validation and detection
- Inventory all CardboardPowered cardboard deployments.
- Confirm each instance version is 1.21.4 or later.
- Compare local code or packages with the referenced patch PR.
- Review service monitoring for unexplained availability issues around world or chunk operations.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-119: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2026-24794 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.2 (4.0)
- Known Exploited
- No
- Published
Vector: 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
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
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——Primary CVE scoreVulnerability scoring details
Base CVSS 4.0 score
9.2CriticalVector: 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
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/CardboardPowered/cardboard/pull/506CVE reference · patch
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Restriction of Operations within the Bounds of a Memory Buffer
Improper Restriction of Operations within the Bounds of a Memory Buffer represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.