GHSA-v27v-f96q-qhjqRUSTSEC-2026-0451
In version 0.11.1 and earlier of vodozemac, the Olm root key ratchet did not zeroize its HKDF output after use. Each ratchet step left a copy of the new root key and chain key in freed heap memory.
Impact
An attacker who can read the process's memory, for example through a separate memory-disclosure bug, a core dump, or swapped-out pages, may recover root keys and chain keys from earlier ratchet steps. A leaked chain key allows decrypting the messages in that chain, weakening Olm's forward secrecy for affected sessions.
AI analysis
Not analysed yet.
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| Product | Affected versions | Fixed in | Source |
|---|---|---|---|
| vodozemaccrates.io | >= 0.0.0-0, < 0.11.2 | 0.11.2 | OSV |
No weakness classification (CWE) has been assigned yet.
Published
First publication at the source
Last modified
Latest change at the source
Collected
First seen by Baba Yaga Security