GHSA-6gvq-jcmp-8959
Medium · 6.5CVSS
6.5
EPSS
—
Published
Dec 16, 2025
CISA due date
—
The record
ALTCHA Proof-of-Work Vulnerable to Challenge Splicing and Replay
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| Go | github.com/altcha-org/altcha-lib-go | 0 | 1.0.0 |
| Maven | org.altcha:altcha | 0 | 1.3.0 |
| Packagist | altcha-org/altcha | 0 | 1.3.1 |
| PyPI | altcha | 0 | 1.0.0 |
| RubyGems | altcha | 0 | 1.0.0 |
| npm | altcha-lib | 0 | 1.4.1 |
| Chainguard | listmonk | 0 | 5.1.0-r2 |
| Chainguard | listmonk-compat | 0 | 5.1.0-r2 |
| Hex | altcha | 0 | 1.0.0 |
Related vulnerabilities
- CVE-2025-68113 ALTCHA is privacy-first software for captcha and bot protection. Same vulnerability
- CVE-2026-33809 A maliciously crafted TIFF file can cause image decoding to attempt to allocate up 4GiB… Also affects listmonk
- CVE-2026-63650 OpenVPN 2.7_alpha1 through 2.7.5 using mbedTLS allows remote authenticated users to be… CWE-115
- CVE-2026-42004 An attacker can send a crafted EDNS OPT record that will be ignored by DNSdist’s… CWE-115
- CVE-2026-12491 A flaw was found in vLLM, an open-source library for large language model inference. CWE-115
- CVE-2025-22870 Matching of hosts against proxy patterns can improperly treat an IPv6 zone ID as a… CWE-115
- CVE-2026-87947 Improper Verification of Cryptographic Signature vulnerability in Drupal SAML SSO… CWE-347
- CVE-2026-84918 Improper Verification of Cryptographic Signature vulnerability in Drupal Monobank payment… CWE-347