CVE-2026-52731Medium· 6.5▾ SunlitZEBRA is a Zcash node written entirely in Rust. Prior to 4.5.0, an attacker authenticated to an enabled Zebra RPC endpoint can terminate zebrad by supplying a getblocktemplate LongPollId containing multi-byte UTF-8 characters. In zebra-r…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 35.8 · likelihood 0.1 · exploitation 0
Need a working PoC? Pro members can cast a request and our team develops one — it lands right here.
Exploit-prediction probability, daily snapshots since Aug 19.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.4%
Last analysed / modified upstream
ZEBRA is a Zcash node written entirely in Rust. Prior to 4.5.0, an attacker authenticated to an enabled Zebra RPC endpoint can terminate zebrad by supplying a getblocktemplate LongPollId containing multi-byte UTF-8 characters. In zebra-rpc/src/methods/types/long_poll.rs, LongPollId::from_str originally checked the input byte length and then sliced fixed byte ranges to parse encoded fields. A slice boundary can land inside a multi-byte character and trigger Rust's byte index is not a char boundary panic. Zebra release builds use panic equals abort, so one malformed authenticated RPC request terminates the entire node process and can be repeated after restart. This issue is fixed in version 4.5.0.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Affected packages:
zebra-rpc <= 7.0.0zebrad <= 4.4.1Patched in:
zebra-rpc 8.0.0zebrad 4.5.0Connected by shared product, vendor, weakness, or advisory.
GHSA-c8w6-x74f-vmg3Medium· 6.5zebrad vulnerable to full node denial of service via crafted Sapling receiver in z_listunifiedreceivers
CVE-2026-52738MediumZEBRA is a Zcash node written entirely in Rust
CVE-2026-52739Medium· 5.9ZEBRA is a Zcash node written entirely in Rust
CVE-2026-44001High· 8.6vm2 is an open source vm/sandbox for Node.js
CVE-2026-31812Medium· 5.3Quinn is a pure-Rust, async-compatible implementation of the IETF QUIC transport protocol
CVE-2026-61544High· 8.2libp2p-rust is the official Rust language implementation of the libp2p networking stack