JSON parsing · Go JOSE: Panics
Affects MicrosoftSource GCVE Database
Not known to be exploited · CVSS 6.9 Medium : upgrade to 4.1.5 when convenient.
Data as of 31 Oct 2026, 08:23 UTC
Thin evidence
One scorer or none| CNA (GitHub_M) | CVSS 4.0 | 6.9 |
|---|
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 21% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 4.1.5
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 26 Oct 2026
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 30 Oct 2026.
What to do
Upgrade go-jose to 4.1.5.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| go-josego-jose | Affected
| Fixed in
|
AI-suggested
If you cannot patch yet, consider implementing input validation or sandboxing to mitigate the risk of application crashes caused by malformed JSON inputs.
Description
CVE-2026-116586 is a vulnerability in the Go JOSE library version 3.0 that causes panics during JSON parsing. The issue relates to improper handling of JSON input, potentially leading to application crashes.