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CVE-2026-58107— Authenticated Remote Denial of Service via Unbounded zlib Decompression in massStoreRun

Quick assessment

Affected
Ericsson CodeChecker
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Ericsson CodeChecker是瑞典Ericsson公司开源的一款代码静态分析工具。 Ericsson codechecker 6.28.3之前版本存在资源管理错误漏洞，该漏洞源于massStoreRun处理路径对攻击者控制的Base64编码zlib数据执行一次性解压，且未限制最大解压大小，可能导致拒绝服务。

CVSS 5.5 · Medium EPSS 0.41% · P34

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 1

VendorProduct Version RangeStatus
Ericsson CodeChecker < 6.28.3 affected
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I. Basic Information for CVE-2026-58107

Vulnerability Information
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Vulnerability Title
Authenticated Remote Denial of Service via Unbounded zlib Decompression in massStoreRun
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
对高度压缩数据的处理不恰当(数据放大攻击)
Source: CVE Program / CVE List V5
Vulnerability Title
Ericsson codechecker 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Ericsson CodeChecker是瑞典Ericsson公司开源的一款代码静态分析工具。 Ericsson codechecker 6.28.3之前版本存在资源管理错误漏洞，该漏洞源于massStoreRun处理路径对攻击者控制的Base64编码zlib数据执行一次性解压，且未限制最大解压大小，可能导致拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Ericsson CodeChecker 0 ~ 6.28.3 -

II. Public POCs for CVE-2026-58107

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III. Intelligence Information for CVE-2026-58107

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Vendor Advisories for CVE-2026-58107 (1)

IV. Related Vulnerabilities

Same product: CodeChecker
Same vendor: Ericsson
Same weakness: CWE-409

V. Comments for CVE-2026-58107

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