# CVE-2026-58107

## Summary

- **CVE ID:** CVE-2026-58107
- **Severity:** MEDIUM
- **CVSS Score:** 5.5 (CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/S:N/AU:Y/R:A/RE:L)
- **CWE:** CWE-409, CWE-770
- **Published:** Aug 28, 2026
- **Last Modified:** Aug 28, 2026

## Description

CodeChecker's massStoreRun processing path performs one-shot decompression of attacker-controlled, Base64-encoded zlib data without enforcing a maximum decompressed size.



An authenticated user with permission to store analysis runs can submit a highly compressed payload that expands to a significantly larger byte sequence. Because the entire decompressed output is materialized in memory before being written to a temporary file, a sufficiently large payload may exhaust process or host memory and consume substantial disk space, resulting in denial of service.

## Affected Products

- Ericsson — CodeChecker (0)

## References

- [CNA](https://github.com/Ericsson/codechecker/security/advisories/GHSA-w7jw-x567-hqr4)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.30%
- **EPSS Percentile:** 22.3

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._