What’s Vulnerable › Vulnerabilities

CVE-2026-4746: Heap Buffer Over-Write Vulenrabilty in timeplus-io/proton

• Severity: critical (CVSS 10.0 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-03-24 · updated 2026-06-17
• Weakness: CWE-787

Description

Out-of-bounds Write vulnerability in timeplus-io proton (base/poco/Foundation/src‎ modules). This vulnerability is associated with program files inflate.C. This issue affects proton: before 1.6.16.

Affected products

• timeplus-io proton: all versions

References

• https://github.com/timeplus-io/proton/pull/943

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