๐Ÿ” CVE Alert

CVE-2026-115801

MEDIUM 5.3

Kakao khaiii JSON Config File Linear.cpp open out-of-bounds

CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th

A security flaw has been discovered in Kakao khaiii up to 0.4. The impacted element is the function khaiii::nn::Linear::open of the file src/main/cpp/khaiii/nn/Linear.cpp of the component JSON Config File Handler. The manipulation of the argument hidden_dim/class_num results in out-of-bounds read. The attack requires a local approach. The exploit has been released to the public and may be used for attacks. The vendor explains: "khaiii treats the resource directory (--rsc-dir) as trusted input, like a binary or a shared library. To use this defect, an attacker must already be able to write to that directory. With that access, an attacker can change the analysis results without this defect." This vulnerability only affects products that are no longer supported by the maintainer.

CWE CWE-125 CWE-119
Vendor kakao
Product khaiii
Published Oct 23, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability

Affected Versions

Kakao / khaiii
0.1 0.2 0.3 0.4

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
vuldb.com: https://vuldb.com/vuln/425983 vuldb.com: https://vuldb.com/vuln/425983/cti vuldb.com: https://vuldb.com/cve/CVE-2026-115801 vuldb.com: https://vuldb.com/submit/1022283 github.com: https://github.com/kakao/khaiii/issues/129 github.com: https://github.com/user-attachments/files/33260270/poc.zip github.com: https://github.com/kakao/khaiii/

Credits

๐Ÿ” Dem000000 (VulDB User) VulDB CNA Team