CVE-2026-58107Network attack vector

Authenticated service interruption via unbounded zlib decompression

Published Aug 28, 2026 · Updated Aug 28, 2026

Resource exhaustion in Ericsson CodeChecker before 6.28.3 allows remote authenticated users to interrupt service via analysis uploads. The massStoreRun unzip function Base64-decodes a user-supplied b64zip value and passes it to one-shot zlib decompression without an output limit. An account authorized to store analysis runs can force the server to materialize the expansion in memory and then write it to temporary storage, causing a process crash or prolonged service interruption.

CVSS severityUnavailable
Unscored
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Resource exhaustion in Ericsson CodeChecker before 6.28.3 allows remote authenticated users to interrupt service via analysis uploads. The massStoreRun unzip function Base64-decodes a user-supplied b64zip value and passes it to one-shot zlib decompression without an output limit. An account authorized to store analysis runs can force the server to materialize the expansion in memory and then write it to temporary storage, causing a process crash or prolonged service interruption.

The record

CVE
CVE-2026-58107
Published
Aug 28, 2026
Updated
Aug 28, 2026
Vendor
Ericsson
Product
CodeChecker
Classifications
CWE-409, CWE-770, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 28, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <6.28.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Ericsson · CodeCheckerversion=0 <6.28.3

Published CVSS scores

5.5EricssonCVSS: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

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-409Improper handling of highly compressed data (data amplification)
CWE-770Allocation of resources without limits or throttling
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo