CVE-2023-29013

highpriority · track · 30EPSS 0.011 · 65 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.08% (65th) EPSS

CVSS 7.5 · high

Is it mine?

6 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-27

Traefik (pronounced traffic) is a modern HTTP reverse proxy and load balancer for deploying microservices. There is a vulnerability in Go when parsing the HTTP headers, which impacts Traefik. HTTP header parsing could allocate substantially more memory than required to hold the parsed headers. This behavior could be exploited to cause a denial of service. This issue has been patched in versions 2.9.10 and 2.10.0-rc2.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · security-advisories@github.comexploitability 3.9 · impact 3.6

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · OSV

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-400USprimaryCWE-400US

affected products (6)

Products and version ranges known to be affected.

traefik traefik≤ = 2.10.0-rc1enisa_euvdEU
traefik traefik≤ < 2.9.10enisa_euvdEU
traefik traefik< 2.9.10nvdUScpe:2.3:a:traefik:traefik:*:*:*:*:*:*:*:*
traefik traefik= 2.10.0nvdUScpe:2.3:a:traefik:traefik:*:*:*:*:*:*:*:*
Go github.com/traefik/traefik/v2< 2.9.10osvUSpkg:golang/github.com/traefik/traefik/v2
Go github.com/traefik/traefik/v22.10.0-rc1 → 2.10.0-rc2osvUSpkg:golang/github.com/traefik/traefik/v2

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-7hj9-rv74-5g92Traefik HTTP header parsing could cause a denial of service 2023-04-11ghsa · osvUS
### Impact There is a vulnerability in [Go when parsing the HTTP headers](https://groups.google.com/g/golang-announce/c/Xdv6JL9ENs8/m/OV40vnafAwAJ), which impacts Traefik. HTTP header parsing could allocate substantially more memory than required to hold the parsed headers. This behavior could be exploited to cause a denial of service. ### References - [CVE-2023-24534](https://www.cve.org/CVERecord?id=CVE-2023-24534) ### Patches - https://github.com/traefik/traefik/releases/tag/v2.9.10 - https://github.com/traefik/traefik/releases/tag/v2.10.0-rc2 ### Workarounds No workaround. ### For more information If you have any questions or comments about this advisory, please [open an issue](https://github.com/traefik/traefik/issues).

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

published 2023-04-14modified 2026-06-17

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+9606 more

references (16)

External citations — patches, advisories, analysis.

scry

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