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GHSA-393w-9x6h-8gc7

HighCVSS 8.2 / 10
Published Sep 17, 2025·Last modified Sep 17, 2025
Affected Components(0)

No affected components available

Description

Pingora deployments that include HTTP/2 server support may be affected by the vulnerability described in CVE-2025-8671. Under certain conditions, Pingora applications may allocate buffers before the HTTP/2 reset and resulting stream cancellation is processed by the server. Repeated resets can force excessive memory consumption and lead to denial-of-service.

Impact: On affected versions, malicious clients could trigger unusually high memory consumption, which may result in service instability or process termination.

Credits: Reported responsibly by security researcher Gal Bar Nahum (@galbarnahum)

Mitigation: This issue is addressed by ensuring Pingora uses patched versions of HTTP/2 dependencies that include reset-handling safeguards to release connection resources before excessive memory buildup. Users should upgrade to the latest Pingora release, which incorporates the required fixes.

  • Users are requested to upgrade to latest version of Pingora >= 0.6.0
Risk Scores
Base Score
8.2

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability.

Threat Intelligence
4.6

Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.

EPSS
N/A

Probability that this vulnerability will be exploited in the wild within the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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