CVE-2026-48119 json
Nezha Monitoring: Authenticated agents can forge service-monitor results for other users' services
published 2026-06-01 5 mo ago modified 2026-10-25 14 d ago also GHSA-4g6j-g789-rghm , GO-2026-5119 , EUVD-2026-36595
- cvss
- 7.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 24%
- public exploits
- 0
- none known
Summary
Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. From version 0.20.0 to before version 2.0.12, authenticated agents can forge service-monitor results for other users' services. This issue has been patched in version 2.0.12.
Patch / fix
- go github.com/nezhahq/nezha 1.14.15-0.20260521020202-02129f16fb15, 2.0.12
- govulncheck-vulndb SLES for SAP applications 16.0, SLES 16.0 0.0.20260827T195228-160000.1.1
suse advisories SUSE-SU-2026:23625-1
- govulncheck-vulndb openSUSE Leap 16.0 0.0.20260827T195228-160000.1.1
opensuse advisories openSUSE-SU-2026:21761-1
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 4 mo ago
Exploit prediction
0.31% chance of exploitation in the next 30 days, higher than 24% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/nezhahq/nezha/security/advisories/GHSA-4g6j-g789-rghm referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L |
| GitHub | 3.1 | 7.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/nezhahq/nezha | >=0.20.0, <1.14.15-0.20260521020202-02129f16fb15 >=2.0.0, <2.0.12 >=1.0.0, <1.14.15-0.20260521020202-02129f16fb15 |
1.14.15-0.20260521020202-02129f16fb15 2.0.12 |
| go | github.com/naiba/nezha | >=0.20.0 |
no fix listed |
Affected products
- nezhahq nezha
Classification
- Weakness
-
- CWE-862 Missing Authorization
References
-
github.com
/nezhahq/nezha/commit/02129f16fb1572ef57c7e8dd7d03f84d39b8b586
web, patch
-
github.com
/nezhahq/nezha/security/advisories/GHSA-4g6j-g789-rghm
exploit, web, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-48119
advisory
-
github.com
/nezhahq/nezha
package
Sources
- CVE List CVE-2026-48119
- GitHub Advisory GHSA-4g6j-g789-rghm
- NVD CVE-2026-48119
- OSV GO-2026-5119
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.