En bref
- CVE-2025-65849 est une vulnérabilité CRITIQUE (CVSS 9.1) touchant altcha.
- Probabilité d'exploitation dans les 30 prochains jours (EPSS) : 0.22%, plus élevée que 12.6% des vulnérabilités.
- Aucune version corrigée n'est encore connue : suivez l'avis de l'éditeur dans les références.
| Package | Affected versions | Patched versions |
|---|
| altcha npm | ≥ 0.8.0, ≤ 2.2.4
| No fix yet |
Description
A cryptanalytic break in Altcha Proof-of-Work obfuscation mode version 0.8.0 and later allows for remote visitors to recover the Proof-of-Work nonce in constant time via mathematical deduction.
NVD description
A cryptanalytic break in Altcha Proof-of-Work obfuscation mode version 0.8.0 and later allows for remote visitors to recover the Proof-of-Work nonce in constant time via mathematical deduction. NOTE: this is disputed by the Supplier because the product's objective is "to discourage automated scraping / bots, not guarantee resistance to determined attackers." The documentation states “the goal is not to provide a secure cryptographic algorithm but to use a proof-of-work mechanism that allows any capable device to decrypt the hidden data.”
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