CVE-2020-26213
Denial of Service in teler
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Denial of Service in teler
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.
- Record
CVE-2020-26213- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-476
- Updated
- 2026-11-02
EUVDEUVD-2021-1117
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.
- Record
EUVD-2021-1117- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-jhj6-5mh6-4pvf
Denial-of-Service within Docker container
Impact
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.
Specific Go Packages Affected
ktbs.dev/teler/pkg/errors
Patches
Upgrade to the >= 0.0.1 version.
Workarounds
N/A
References
For more information
If you have any questions or comments about this advisory:
- Open an issue in Issues Section
- Email us at [email protected]
- Record
GHSA-jhj6-5mh6-4pvf- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-476
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2020-26213- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-476
- Updated
- 2026-11-02
OSV
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.
- Record
CVE-2020-26213- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVGHSA-jhj6-5mh6-4pvf
Denial-of-Service within Docker container
Impact
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.
Specific Go Packages Affected
ktbs.dev/teler/pkg/errors
Patches
Upgrade to the >= 0.0.1 version.
Workarounds
N/A
References
For more information
If you have any questions or comments about this advisory:
- Open an issue in Issues Section
- Email us at [email protected]
- Record
GHSA-jhj6-5mh6-4pvf- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-476
- Updated
- 2026-11-02
OSVGO-2022-0903 No score
Denial-of-Service within Docker container in ktbs.dev/teler
Denial-of-Service within Docker container in ktbs.dev/teler
- Record
GO-2022-0903- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
ktbs.dev/telerGo |
before 0.0.1 | 0.0.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-26213 is a medium vulnerability (CVSS 5.9) in Kitabisa Teler, published November 6, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.43%, the 73rd percentile. Fixed in ktbs.dev/teler 0.0.1.