CVE-2026-58107
Authenticated Remote Denial of Service via Unbounded zlib Decompression in massStoreRun
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.
INFO
Published Date :
Aug. 28, 2026, 4:18 p.m.
Last Modified :
Aug. 28, 2026, 4:18 p.m.
Remotely Exploit :
Yes !
Source :
85b1779b-6ecd-4f52-bcc5-73eac4659dcf
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 4.0 | MEDIUM | 85b1779b-6ecd-4f52-bcc5-73eac4659dcf | ||||
| CVSS 4.0 | MEDIUM | 85b1779b-6ecd-4f52-bcc5-73eac4659dcf |
Solution
- Enforce a maximum decompressed size limit for zlib data.
- Validate the size of decompressed output before materialization.
- Implement resource controls for memory and disk usage.
- Update CodeChecker to the latest secure version.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-58107.
| URL | Resource |
|---|---|
| https://github.com/Ericsson/codechecker/security/advisories/GHSA-w7jw-x567-hqr4 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-58107 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-58107
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-58107 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-58107 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by 85b1779b-6ecd-4f52-bcc5-73eac4659dcf
Aug. 28, 2026
Action Type Old Value New Value Added 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. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:Y/R:A/V:X/RE:L/U:X Added CWE CWE-409 Added CWE CWE-770 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/58xxx/CVE-2026-58107.json">CVE-2026-58107</a> Added Reference https://github.com/Ericsson/codechecker/security/advisories/GHSA-w7jw-x567-hqr4