01 Record
CVE-2025-68113
ALTCHA Proof-of-Work Vulnerable to Challenge Splicing and Replay
MediumPUBLISHEDCNA: GitHub_M
CNA base score6.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
02 Description
ALTCHA Proof-of-Work Vulnerable to Challenge Splicing and Replay
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.46% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 39.8% of scored records. A rank, not a probability.
- NVD base score
- 6.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
- NVD analysis status
- Deferred. NVD last modified this record on 2026-10-07.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2025-12-16 00:53Z10 MO AGO
- Last updated
- 2025-12-16 21:14Z10 MO AGO
- Reserved
- 2025-12-15
- Assigning CNA
- GitHub_M
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 6.5)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
- Weaknesses
- Data version
- 5.2
- Document digest
- 2d3cb744a5254fbba36a9b4d6feb669b0eb539315f900f070feb8eba90e8023b
05 Affected products
VendorProductVersionsPlatforms
06 References
- github.comhttps://github.com/altcha-org/altcha-lib/security/advisories/GHSA-6gvq-jcmp-8959
- github.comhttps://github.com/altcha-org/altcha-lib-ex/commit/09b2bad466ad0338a5b24245380950ea9918333e
- github.comhttps://github.com/altcha-org/altcha-lib-go/commit/4a5610745ef79895a67bac858b2e4f291c2614b8
- github.comhttps://github.com/altcha-org/altcha-lib-java/commit/69277651fdd6418ae10bf3a088901506f9c62114
- github.comhttps://github.com/altcha-org/altcha-lib-php/commit/9e9e70c864a9db960d071c77c778be0c9ff1a4d0
- github.comhttps://github.com/altcha-org/altcha-lib-rb/commit/4fd7b64cbbfc713f3ca4e066c2dd466e3b8d359b
- github.comhttps://github.com/altcha-org/altcha-lib/commit/cb95d83a8d08e273b6be15e48988e7eaf60d5c08
- github.comhttps://github.com/altcha-org/altcha-lib-java/releases/tag/v1.3.0
- github.comhttps://github.com/altcha-org/altcha-lib-php/releases/tag/v1.3.1
- github.comhttps://github.com/altcha-org/altcha-lib/releases/tag/1.4.1