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A GitHub-reviewed security advisory, not necessarily under active exploitation the way our CISA KEV advisories are, but a real, disclosed vulnerability in an open-source dependency.
Affected packages
Vulnerable: >= 7.11.0, < 7.29.1
Patched in 7.29.1
Vulnerable: >= 8.0.0, < 8.10.2
Patched in 8.10.2
Details
undici's RetryHandler can leave a response body pending indefinitely. When a retried request receives a non-retryable response after a truncated one, the original response.body held by the application is never settled, so reads such as response.body.text() hang and bodyTimeout does not fire. A malicious server can repeat this to accumulate pending promises and streams, leading to denial of service.
Patched in undici v7.29.1 and v8.10.2.
Impose an independent request deadline and destroy the response body when it expires. bodyTimeout alone does not prevent this.
EPSS, exploit probability
Low0.48%
estimated chance of real-world exploitation in the next 30 days, higher than 42.0% of every CVE FIRST.org scores
Refreshed 11/14/2026, via FIRST.org's EPSS model, not CVSS, this measures likelihood of exploitation, not how severe it would be.
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