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.
CodeChecker 的 处理路径会对攻击者可控的、经 Base64 编码的 zlib 数据执行一次性解压缩操作，且未对解压后的数据大小设置上限。 拥有存储分析运行结果权限的已认证用户可以提交一个高度压缩的载荷，该载荷在解压后会扩展为显著更大的字节序列。由于整个解压输出在写入临时文件之前会全部加载到内存中，足够大的载荷可能会导致进程或宿主机的内存耗尽，并占用大量磁盘空间，从而导致服务拒绝（DoS）。
Possible ATT&CK Techniques 1 AI
T1499 · Endpoint Denial of ServiceAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| 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
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Ericsson | CodeChecker | 0 ~ 6.28.3 | - |
|
II. Public POCs for CVE-2026-58107
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-58107 (1)
IV. Related Vulnerabilities
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V. Comments for CVE-2026-58107
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