CVE-2026-88012

MEDIUMPre-NVD 5.35.3
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 5.3 from GitHub Security Advisory (severity: MODERATE) published 2026-09-10. A secondary CVSS source baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source

Also known asEUVD-2026-75562 (ENISA EUVD) · GHSA-7ghq-v6jf-g56c (GitHub Security Advisories) · GO-2026-6454 (OSV.dev)Source: ENISA EUVD

5.3EG
EchelonGraph verdictMonitorRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 5.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Traefik is an open source HTTP reverse proxy and load balancer. From 2.8.2 until 2.11.56 and 3.7.12, HTTP/3 entrypoints do not apply entryPoints..transport.respondingTimeouts.readTimeout because the timeout is enforced on a TCP connection and the HTTP/3 server has no corresponding QUIC stream deadline. An unauthenticated client can use a slow request body, trickling data indefinitely while holding a request and an upstream connection open and exhausting backends with bounded connection pools. This issue is fixed in 2.11.56 and 3.7.12.

CVSS v3
5.3
EG Score
5.3MEDIUMmedium confidence
EG Risk
39
EG Risk 39/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity53% × 45%
Impact severity (EG Severity): CVSS 5.3 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.5% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.5%
EPSS %ILE
44th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (5.3): severity, escalated by confirmed exploitation. This CVE's 5.3 is its impact severity (EG Severity), not escalated.

EG Severity
5.3 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.5% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-31). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; 60 days if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

September 10, 2026

Last Modified

September 14, 2026

Advisory Details (5)

Auto-updated Sep 10, 2026
Patch available. Sources: github, github_pr, github_commit, github_release.
GitHub release Patch Available

v3.7.12

Patch available: traefik/traefik v3.7.12

https://github.com/traefik/traefik/releases/tag/v3.7.12
GitHub release Patch Available

v2.11.56

Patch available: traefik/traefik v2.11.56

https://github.com/traefik/traefik/releases/tag/v2.11.56
GitHub commit

commit a8d0bc425859 (traefik/traefik)

Fix landed in traefik/traefik commit a8d0bc425859 — awaiting tagged release

https://github.com/traefik/traefik/commit/a8d0bc425859dde7481a6c9a324e610b81d754d0
GitHub pull request

Apply read timeout, idle timeout, and max header bytes for HTTP/3

Fix merged in traefik/traefik PR #13717 on 2026-08-24 — awaiting tagged release

https://github.com/traefik/traefik/pull/13717
GitHub advisoryMentions a patch (unverified)

respondingTimeouts.readTimeout is not applied to HTTP/3, leaving slow-body uploads unbounded · Advisory · traefik/traefik · GitHub

https://github.com/traefik/traefik/security/advisories/GHSA-7ghq-v6jf-g56c

Vendor Advisories for CVE-2026-88012(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(2)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
gogithub.com/traefik/traefik/v2 @ 2.11.56 (fixes >= 2.8.2, < 2.11.56)—ghsa
gogithub.com/traefik/traefik/v3 @ 3.7.12 (fixes >= 3.0.0, < 3.7.12)—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(3 across 1 ecosystem)
Go(3)
PackageVulnerable rangeFix by version rangeDependents
github.com/traefik/traefik—
  • every version on: no fix on record
—
github.com/traefik/traefik/v2—
  • 2.8.2 up to 2.11.56: fixed in 2.11.56
—
github.com/traefik/traefik/v3—
  • 3.0.0 up to 3.7.12: fixed in 3.7.12
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 7× in last 7d / 32× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed its CVE.org record (CNA or CISA ADP). An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

Showing the most recent 100 of 102 rows on record for this CVE, as 99 entries (1 repeat merged).

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 1 repeat row among the latest 100 is merged into the row it repeats. The 2 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-13 16:58 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  2. 2026-11-12 16:35 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  3. 2026-11-11 16:41 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  4. 2026-11-10 16:45 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  5. 2026-11-09 16:36 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  6. 2026-11-08 16:41 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  7. 2026-11-07 16:40 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  8. 2026-11-06 16:39 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  9. 2026-11-05 16:39 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  10. 2026-11-04 16:37 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  11. 2026-11-03 16:49 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  12. 2026-11-02 16:46 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  13. 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  14. 2026-11-01 07:37 UTCGHSA enrichmentGHSA-7ghq-v6jf-g56c · GitHub severity MODERATE · GitHub CVSS 5.3
  15. 2026-11-01 07:37 UTCEchelonGraph re-scored
  16. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  17. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  18. 2026-10-29 22:55 UTCOSV refresh
  19. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  20. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  21. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  22. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  23. 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  24. 2026-10-25 13:53 UTCEchelonGraph re-scored
  25. 2026-10-24 16:34 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
Show 74 more
  1. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  2. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  3. 2026-10-22 12:34 UTCEchelonGraph re-scored
  4. 2026-10-21 16:34 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  5. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  6. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  7. 2026-10-18 16:33 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  8. 2026-10-18 03:03 UTCEchelonGraph re-scored
  9. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  10. 2026-10-16 16:44 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  11. 2026-10-15 16:33 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  12. 2026-10-14 16:34 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  13. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  14. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  15. 2026-10-12 14:49 UTCEchelonGraph re-scored
  16. 2026-10-11 19:15 UTCEchelonGraph re-scored
  17. 2026-10-11 16:32 UTCEchelonGraph re-scored
  18. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  19. 2026-10-11 13:49 UTCEchelonGraph re-scored
  20. 2026-10-10 23:18 UTCEchelonGraph re-scored
  21. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  22. 2026-10-09 22:37 UTCEchelonGraph re-scored
  23. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  24. 2026-10-08 23:47 UTCEchelonGraph re-scored
  25. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  26. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  27. 2026-10-06 21:40 UTCEchelonGraph re-scored
  28. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  29. 2026-10-05 22:51 UTCEchelonGraph re-scored
  30. 2026-10-05 17:44 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  31. 2026-10-05 00:03 UTCEchelonGraph re-scored
  32. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  33. 2026-10-04 01:14 UTCEchelonGraph re-scored
  34. 2026-10-03 02:26 UTCEchelonGraph re-scored
  35. 2026-10-02 03:28 UTCEchelonGraph re-scored
  36. 2026-10-01 19:51 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  37. 2026-10-01 03:38 UTCEchelonGraph re-scored
  38. 2026-09-30 15:04 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  39. 2026-09-30 04:50 UTCEchelonGraph re-scored
  40. 2026-09-29 05:38 UTCEchelonGraph re-scored
  41. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  42. 2026-09-28 06:50 UTCEchelonGraph re-scored
  43. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  44. 2026-09-27 08:02 UTCEchelonGraph re-scored
  45. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  46. 2026-09-26 09:13 UTCEchelonGraph re-scored
  47. 2026-09-25 10:15 UTCEchelonGraph re-scored
  48. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  49. 2026-09-24 11:26 UTCEchelonGraph re-scored
  50. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  51. 2026-09-23 12:38 UTCEchelonGraph re-scored
  52. 2026-09-22 16:01 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  53. 2026-09-22 13:49 UTCEchelonGraph re-scored
  54. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  55. 2026-09-21 15:01 UTCEchelonGraph re-scored
  56. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  57. 2026-09-19 17:24 UTCEchelonGraph re-scored
  58. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  59. 2026-09-17 19:47 UTCEchelonGraph re-scored
  60. 2026-09-17 19:32 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  61. 2026-09-16 18:09 UTCEchelonGraph re-scored
  62. 2026-09-16 14:09 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  63. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  64. 2026-09-15 19:03 UTCEchelonGraph re-scored
  65. 2026-09-15 03:12 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  66. 2026-09-13 19:00 UTCEchelonGraph re-scored
  67. 2026-09-13 16:48 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  68. 2026-09-12 20:12 UTCEchelonGraph re-scored
  69. 2026-09-12 15:02 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  70. 2026-09-11 21:23 UTCEchelonGraph re-scored
  71. 2026-09-11 20:47 UTCEchelonGraph re-scored
  72. 2026-09-11 18:48 UTCEchelonGraph re-scored
  73. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  74. 2026-09-10 16:20 UTCEchelonGraph re-scored

Frequently asked(5)

What is CVE-2026-88012?
CVE-2026-88012 is a medium-severity vulnerability; its CVE record was published on September 10, 2026. Traefik is an open source HTTP reverse proxy and load balancer. From 2.8.2 until 2.11.56 and 3.7.12, HTTP/3 entrypoints do not apply entryPoints..transport.respondingTimeouts.readTimeout because the timeout is enforced on a TCP connection and the HTTP/3 server has no corresponding QUIC stream…
When was the CVE record for CVE-2026-88012 published?
The CVE record for CVE-2026-88012 was published on September 10, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of September 14, 2026; the record at its source may have been updated since.
Is CVE-2026-88012 actively exploited?
CVE-2026-88012 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (44th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-88012?
CVE-2026-88012 has a CVSS base score of 5.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-88012?
A fix for CVE-2026-88012 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-88012 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-88012

Explore →

Is Your Infrastructure Affected by CVE-2026-88012?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.