CVE-2020-26213 json
Denial of Service in teler
published 2020-11-06 6 y ago modified 2026-07-08 4 mo ago also GHSA-jhj6-5mh6-4pvf , GO-2022-0903 , EUVD-2021-1117
- cvss
- 5.9
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.4%
- EPSS 1.4% chance of exploitation in 30 days, percentile 73%
- public exploits
- 0
- none known
Summary
In teler before version 0.0.1, if you run teler inside a Docker container and encounter `errors.Exit` function, it will cause denial-of-service (`SIGSEGV`) because it doesn't get process ID and process group ID of teler properly to kills. The issue is patched in teler 0.0.1 and 0.0.1-dev5.1.
Patch / fix
Exploit prediction
1.43% chance of exploitation in the next 30 days, higher than 73% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
| GitHub | 3.1 | 5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | ktbs.dev/teler | <0.0.1 |
0.0.1 |
Affected products
- kitabisa teler
Classification
- Weakness
-
- CWE-476 NULL Pointer Dereference
References
-
github.com
/kitabisa/teler/commit/ec6082049dba9e44a21f35fb7b123d42ce1a1a7e
web, patch, third-party-advisory
-
github.com
/kitabisa/teler/security/advisories/GHSA-jhj6-5mh6-4pvf
web, third-party-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2020-26213
advisory
-
github.com
/kitabisa/teler
package
Sources
- CVE List CVE-2020-26213
- GitHub Advisory GHSA-jhj6-5mh6-4pvf
- NVD CVE-2020-26213
- OSV GO-2022-0903
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