Denial of Service in teler
Priority LOW 36CWE-476Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-476.
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.
Why it matters now
EPSS 0.01429 73rd percentileScored 2026-11-07
Fix Fixed teler (kitabisa): 0.0.1ktbs.dev/teler (Go): 0.0.1
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| kitabisa | teler | before 0.0.1 | 0.0.1 | Patch available | CNA |
| — | ktbs.dev/teler (Go) | before 0.0.1 | 0.0.1 | Patch available | GHSA-jhj6-5mh6-4pvf |
- teler Vendorkitabisa Affected before 0.0.1 Fixed in 0.0.1 Patch available CNA
- ktbs.dev/teler (Go) Vendor— Affected before 0.0.1 Fixed in 0.0.1 Patch available GHSA-jhj6-5mh6-4pvf
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:teler_project:teler:*:*:*:*:*:*:*:* | before 0.0.1 | Vulnerable | Teler Project |
- cpe:2.3:a:teler_project:teler:*:*:*:*:*:*:*:* Versions before 0.0.1 Vulnerable ·Teler Project
Remediation
- Fix · CNA teler (kitabisa) Fixed in 0.0.1
- Fix · GHSA-jhj6-5mh6-4pvf ktbs.dev/teler (Go) Fixed in 0.0.1 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2020-26213
- 2026-10-03 Alias added: GHSA-jhj6-5mh6-4pvf
References
More kitabisa vulnerabilities
- TI-2023-11280 teler-waf subject to bypass of common web attack threat rule with HTML entities payload CVSS 3.1MEDIUM 6.5
- TI-2023-11281 teler-waf contains detection rule bypass via entities payload CVSS 3.1MEDIUM 6.5
- TI-2022-07526 DOM-based cross-site scripting (XSS) in teler dashboard CVSS 3.1MEDIUM 5.4
Sources
- CVE-2020-26213 · CVE Program
- CVE-2020-26213 · NVD
- FIRST EPSS
- GHSA-jhj6-5mh6-4pvf · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences