CVE-2025-68113Published
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.
Explicit identifiers and source references
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CVE-2025-68113 · Microsoft / collected KEV context
nvd · CVE-2025-68113
- https://github.com/altcha-org/altcha-lib-ex/commit/09b2bad466ad0338a5b24245380950ea9918333e
- https://github.com/altcha-org/altcha-lib-go/commit/4a5610745ef79895a67bac858b2e4f291c2614b8
- https://github.com/altcha-org/altcha-lib-java/commit/69277651fdd6418ae10bf3a088901506f9c62114
- https://github.com/altcha-org/altcha-lib-java/releases/tag/v1.3.0
- https://github.com/altcha-org/altcha-lib-php/commit/9e9e70c864a9db960d071c77c778be0c9ff1a4d0
- https://github.com/altcha-org/altcha-lib-php/releases/tag/v1.3.1
- https://github.com/altcha-org/altcha-lib-rb/commit/4fd7b64cbbfc713f3ca4e066c2dd466e3b8d359b
- https://github.com/altcha-org/altcha-lib/commit/cb95d83a8d08e273b6be15e48988e7eaf60d5c08
- https://github.com/altcha-org/altcha-lib/releases/tag/1.4.1
- https://github.com/altcha-org/altcha-lib/security/advisories/GHSA-6gvq-jcmp-8959
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