Add advisory for connectrpc: stalled request body of a finished streaming call - #3238
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djc
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Sep 22, 2026
| id = "RUSTSEC-0000-0000" | ||
| package = "connectrpc" | ||
| date = "2026-09-21" | ||
| url = "https://github.com/connectrpc/connect-rust/security/advisories/GHSA-jx5x-3mcr-qp8r" |
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Prefer to have an issue/PR/commit as the primary URL here, since we already have the GHSA in aliases.
iainmcgin
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September 22, 2026 23:10
…ming call A client-streaming or bidirectional-streaming call that finishes before it has consumed its request keeps a background reader on the request body with no time limit, so a client that stalls mid-message holds a task, the buffered partial message and the stream or connection until it disconnects. Fixed in 0.8.2 and 0.9.1.
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Affected crate(s)
connectrpc(about 4.2 million recent downloads per crates.io)Links to upstream issue(s) or PR(s)
Severity
Allows remote denial-of-service: a client can keep the request body of a finished client-streaming or bidirectional-streaming call open indefinitely, holding a task, up to 4 MiB of buffered data and the stream or connection per call. CVSS 4.0 6.3 (Medium), as in the GitHub advisory.
Checklist
RUSTSEC-0000-0000as the IDdatefield is set to the public disclosure date