Traefik 2.5 lifecycle

Current status

standard supportlow

Traefik 2.5 is currently in standard support.

Security: 7 tracked advisories affecting this line · 1 in CISA KEV. Details below — lifecycle and vulnerability status are separate.

Official lifecycle source: Traefik GitHub Releases

Support phase: standard support
End of life: Not officially published
Latest release: 2.5.7
Released: 20 Jan 2022

At a glance

Version line: 2.5
Initial release: 17 Aug 2021
Lifecycle phase: standard support
Latest stable: 2.5.7
Latest release date: 20 Jan 2022
EOL: Not officially published
Risk: low
Releases tracked: 8

Lifecycle timeline

Phases from published LifecyclePeriod records. Missing phases are not inferred.

Release
17 Aug 2021
standard supportcurrent
17 Aug 2021 → —
Source: Traefik GitHub Releases

Traefik 2.5 is currently in standard support.

Upgrade options

Newer supported Traefik version lines from CompatHub lifecycle data. Compatibility and security context use existing evidence only.

You are on Traefik 2.5

Supported

Supported upgrade options

Traefik 3.7
Supported· 1 major version newer
Upgrade planner →
Traefik 3.6
Supported· 1 major version newer
Upgrade planner →
Traefik 3.5
Supported· 1 major version newer
Upgrade planner →

Open full upgrade planner for Traefik 2.5 →

Known exploited vulnerabilities

CVE entries that CISA lists in the Known Exploited Vulnerabilities catalogue, including due dates and ransomware use when published. CVSS shown when NVD enrichment is available.

CVE-2023-44487Known exploited
HTTP/2 Rapid Reset Attack Vulnerability
CISA KEV:
listed · added 2023-10-10 · due 2023-10-31
Required action:
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Affected:
<10.5.3; <9.4.0; <2.7.5; <=2.427; <4.2.2; <3.4.2; <4.1.100
Fixed in:
10.5.3, 9.4.0, 2.7.5, 4.2.2, 3.4.2, 4.1.100
Source:
CISA KEV · Advisory

Security

Advisories affecting Traefik 2.5 (OSV.dev evidence). Known exploited status, due dates, and ransomware use from CISA KEV when matched.

Known vulnerabilities: 7
Known exploited: 1
Highest CVSS: —

CVE-2023-44487Known exploited
HTTP/2 Rapid Reset Attack Vulnerability
CISA KEV:
listed · added 2023-10-10 · due 2023-10-31
Required action:
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Affected:
<10.5.3; <9.4.0; <2.7.5; <=2.427; <4.2.2; <3.4.2; <4.1.100
Fixed in:
10.5.3, 9.4.0, 2.7.5, 4.2.2, 3.4.2, 4.1.100
Source:
CISA KEV · Advisory
CVE-2026-53622
Traefik: HTTP/3 mTLS bypass via exact SNI TLSOptions lookup for wildcard and mixed-case hosts
Affected:
<3.7.3
Fixed in:
3.7.3
Source:
OSV source · Advisory
CVE-2026-29777
Traefik has a kubernetes gateway rule injection via unescaped backticks in HTTPRoute match values
Affected:
<3.6.10
Fixed in:
3.6.10
Source:
OSV source · Advisory
CVE-2026-25949
Traefik: TCP readTimeout bypass via STARTTLS on Postgres
Affected:
<3.6.8
Fixed in:
3.6.8
Source:
OSV source · Advisory
CVE-2022-46153
Routes exposed with an empty TLSOption in traefik
Affected:
<2.9.6
Fixed in:
2.9.6
Source:
OSV source · Advisory
CVE-2022-23469
Authorization header displayed in the debug logs
Affected:
<2.9.6
Fixed in:
2.9.6
Source:
OSV source · Advisory
CVE-2022-23632
Traefik skips the router TLS configuration when the host header is an FQDN
Affected:
<2.6.1
Fixed in:
2.6.1
Source:
OSV source · Advisory

Latest release

2.5.7

Released 20 Jan 2022 · stable

https://github.com/traefik/traefik/releases/tag/v2.5.7

Previous releases

2.5.6
22 Dec 2021
2.5.5
10 Dec 2021
2.5.4
8 Nov 2021

Release history

8 concrete releases tracked for this line.

Version	Release date	Channel	Source
2.5.7	20 Jan 2022	stable	Source
2.5.6	22 Dec 2021	stable	Source
2.5.5	10 Dec 2021	stable	Source
2.5.4	8 Nov 2021	stable	Source
2.5.3	20 Sept 2021	stable	Source
2.5.2	2 Sept 2021	stable	Source
2.5.1	20 Aug 2021	stable	Source
2.5.0	17 Aug 2021	stable	Source

Release activity

Total releases: 8
Last 30 days: 0
Last 90 days: 0
Avg. interval: ~22 days
Most recent: 20 Jan 2022

Should I use this version?

Suitable for new deployments

Traefik 2.5 is currently supported (standard support).

Version comparison

Compact comparison against the nearest relevant release lines.

	2.5	3.7
Status	standard support	standard support
Latest release	2.5.7	3.7.12
EOL	Not published	Not published
Risk	low	low

Sources

Where this information comes from.

Lifecycle sources

Traefik GitHub Releasesfirst party · high confidence
Official source: https://github.com/traefik/traefik/releases
Last verified 1 Sept 2026
OSV.devfirst party
Official source: https://osv.dev
Verification time not recorded
NVD (NIST)first party
Official source: https://nvd.nist.gov
Verification time not recorded
CISA Known Exploited Vulnerabilitiesfirst party
Official source: https://www.cisa.gov/known-exploited-vulnerabilities-catalog
Verification time not recorded

Release sources

Traefik GitHub Releasesfirst party · high confidence
Official source: https://github.com/traefik/traefik/releases
Last verified 1 Sept 2026

Data coverage

Last checked = last successful upstream check. Latest source update = when upstream content last changed.

Releases tracked: 8
Lifecycle periods: 1
EOL: Not officially published
Provenance records: 2
Data last checked: 1 Sept 2026
Latest source update: 1 Sept 2026

EOL: Not officially published