CVE-2025-65849
- Source
- https://cve.org/CVERecord?id=CVE-2025-65849
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-65849.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2025-65849
- Aliases
- Published
- 2025-12-08T19:15:50.817Z
- Modified
- 2026-03-15T22:51:25.889574Z
- Severity
-
- 9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
- Summary
- [none]
- Details
-
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.”
- References