ALTCHA is privacy-first software for captcha and bot protection. A cryptographic semantic binding flaw in ALTCHA libraries allows challenge payload splicing, which may enable replay attacks. The HMAC signature does not unambiguously bind ch…
Exact source revision recorded 25 Oct 2026 04:17:10 UTC. It does not establish the source's current position. Latest evidence.
nvd · CVE-2025-68113
PublishedNVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.
Source analysis status: Deferred
Weakness classifications: CWE-115 · CWE-347
Original publisher date fields
published: 2025-12-16T01:15:53.383
lastModified: 2026-10-07T19:10:00.160
No normalized affected-package data is projected for this source revision. The original publisher record may contain additional product and version evidence; this does not establish that a package is unaffected.
Original source record · Cite this exact observation · Complete original publisher JSON