CVE-2025-54321: In Ascertia SigningHub through 8.6.8, there is a lack of rate limiting on the reset password
Source GCVE Database
Not known to be exploited · CVSS 9.8 Critical : upgrade to 8.6.9 as a priority.
Data as of 13 Nov 2026, 20:36 UTC
Thin evidence
One scorer or none| CISA-ADP | CVSS 3.1 | 9.8 |
|---|
- Patch
- Available – fixed in 8.6.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 18 Nov 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.
What to do
Upgrade saykino/CVE-2025-54321 to 8.6.9.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
GitHubsaykino/CVE-2025-54321pkg:github/saykino/CVE-2025-54321Other threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
In the meantime, consider implementing external rate limiting or email throttling controls at the network or mail server level to mitigate potential abuse. Since the vulnerability requires authentication, review and restrict access to the reset password functionality where possible.
Description
Ascertia SigningHub versions through 8.6.8 have a vulnerability due to lack of rate limiting on the password reset function. This flaw allows an authenticated attacker to automate reset password requests, resulting in an email bombing attack. The vulnerability has a critical severity rating with a CVSS score of 9.8.