CyberSecBulletin

Stellar vulnerabilities

We track 4 vulnerabilities in Stellar products across 5 products. 4 are rated high or critical, and none are known to be exploited. The most recent was published on March 12, 2026.

4vulnerabilities
0critical
4high
0exploited
7.8average CVSS score

Latest Stellar vulnerabilities

  • 8.7 High severity

    rs-soroban-poseidon: Use of Weak Hash

    CVE-2026-32129Stellar

    soroban-poseidon provides Poseidon and Poseidon2 cryptographic hash functions for Soroban smart contracts. Poseidon V1 (PoseidonSponge) accepts variable-length inputs without injective padding. When a caller provides fewer inputs than the sponge rate (inputs.l

  • 7.5 High severity

    rs-stellar-xdr: Allocation of Resources Without Limits or Throttling

    CVE-2026-29795Stellar

    stellar-xdr is a library and CLI containing types and functionality for working with Stellar XDR. Prior to version 25.0.1, StringM::from_str does not validate that the input length is within the declared maximum (MAX). Calling StringM::<N>::from_str(s) where s

  • 7.5 High severity

    rs-soroban-sdk: Always-Incorrect Control Flow Implementation

    CVE-2026-26267Stellar

    soroban-sdk is a Rust SDK for Soroban contracts. Prior to versions 22.0.10, 23.5.2, and 25.1.1, the `#[contractimpl]` macro contains a bug in how it wires up function calls. `#[contractimpl]` generates code that uses `MyContract::value()` style calls even when

  • 7.5 High severity

    rs-stellar-strkey: Uncaught Exception

    CVE-2023-46135Stellar

    rs-stellar-strkey is a Rust lib for encode/decode of Stellar Strkeys. A panic vulnerability occurs when a specially crafted payload is used.`inner_payload_len` should not above 64. This vulnerability has been patched in version 0.0.8.