CVE-2026-46600

HIGHPre-NVD 7.57.5
EchelonGraph scoreMEDIUM confidence

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

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-07-21. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: CISA-ADP (Vulnrichment) CVSS v3.1, EPSS, GitHub Security Advisory
Trending — 4 sources updated this week

Also known asEUVD-2026-46383 (ENISA EUVD) · GHSA-gg3m-vvp2-p2c5 (GitHub Security Advisories)Source: ENISA EUVD

7.5EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Parsing an invalid SVCB or HTTPS RR can panic when the size of a parameter value overflows the message buffer.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
49
EG Risk 49/100

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)
Severity75% × 45%
Impact severity (EG Severity): CVSS 7.5 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
45th
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 (7.5): severity, escalated by confirmed exploitation. This CVE's 7.5 is its impact severity (EG Severity), not escalated.

EG Severity
7.5 HIGHCVSS-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 2026-10-24). 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: 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.

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

July 21, 2026

Last Modified

October 24, 2026

Advisory Details (3)

Auto-updated Jul 23, 2026
Patch available.
Web page

GO-2026-5942 - Go Packages

https://pkg.go.dev/vuln/GO-2026-5942
Web page

x/net/dns/dnsmessage: panic when parsing invalid SVCB record · Issue #79795 · golang/go · GitHub

https://go.dev/issue/79795

Patch Availability(27)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatopenshift-logging/cluster-logging-rhel9-operator:17918301342026-10-14redhat
redhatcert-manager/cert-manager-operator-rhel9:17917882872026-10-13redhat
redhatcert-manager/jetstack-cert-manager-rhel9:17913710692026-10-13redhat
redhatcert-manager/cert-manager-operator-rhel9:17905898552026-09-28redhat
redhatrhacm2/mtv-integrations-rhel9:17902020802026-09-28redhat
redhatcert-manager/cert-manager-istio-csr-rhel9:17905899142026-09-28redhat
redhatrhacm2/mtv-integrations-rhel9:17901982482026-09-28redhat
redhatrhacm2/thanos-receive-controller-rhel9:17901895812026-09-28redhat
redhatcert-manager/cert-manager-operator-rhel9:17902724262026-09-28redhat
redhatcert-manager/cert-manager-istio-csr-rhel9:17902237192026-09-28redhat
redhatcert-manager/jetstack-cert-manager-rhel9:17905899122026-09-28redhat
redhatmulticluster-engine/kube-rbac-proxy-mce-rhel9:17901282382026-09-28redhat
redhatcert-manager/jetstack-cert-manager-rhel9:17902232792026-09-28redhat
redhatopenshift-logging/cluster-logging-rhel9-operator:17896591662026-09-23redhat
redhatrhosdt/opentelemetry-rhel9-operator:17896465042026-09-21redhat
redhatcompliance/openshift-compliance-rhel8-operator:17891444782026-09-15redhat
redhatadvanced-cluster-security/rhacs-scanner-slim-rhel9:17890686492026-09-15redhat
redhatcert-manager/cert-manager-operator-rhel9:17883485222026-09-03redhat
redhatcert-manager/jetstack-cert-manager-rhel9:17883485712026-09-03redhat
redhatcluster-observability-operator/thanos-rhel9:17875940872026-08-31redhat
redhatrhacm2/multicluster-role-assignment-rhel9:17872385852026-08-26redhat
redhatrhacm2/insights-metrics-rhel9:17876817372026-08-26redhat
redhatrhacm2/insights-metrics-rhel9:17872276652026-08-26redhat
redhatrhacm2/insights-metrics-rhel9:17866465692026-08-26redhat
redhatrhacm2/insights-metrics-rhel9:17872590922026-08-26redhat
redhatrhacm2/insights-metrics-rhel9:17870868302026-08-26redhat
redhatrhosdt/opentelemetry-rhel9-operator:17866351752026-08-13redhat

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 2 ecosystems)
Go(2)
PackageVulnerable rangeFix by version rangeDependents
golang.org/x/net—
  • every version up to 0.56.0: fixed in 0.56.0
—
stdlib—
  • 1.26.0-0 up to 1.26.6: fixed in 1.26.6
  • 1.27.0-0 up to 1.27.0-rc.3: fixed in 1.27.0-rc.3
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
golang-golang-x-net1:0.27.0-2 ... 1:0.55.0-1 (7 versions)
  • every version up to 1:0.56.0-1: fixed in 1:0.56.0-1
—

Weakness Classification(1)

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

Additional Vendor Advisories

(12)

Data Freshness Timeline

(refreshed 14× in last 7d / 52× 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 it from the CNA feed. 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). Most recent first.

Showing the most recent 100 of 307 refreshes on record for this CVE.

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. None are among the latest 100 rows. The 207 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  2. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  3. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  4. 2026-10-25 14:25 UTCEG score recompute
  5. 2026-10-24 19:26 UTCEG score recompute
  6. 2026-10-24 19:26 UTCVendor advisory
  7. 2026-10-24 19:26 UTCGHSA enrichmentGHSA-gg3m-vvp2-p2c5 · GitHub severity HIGH · GitHub CVSS 7.5
  8. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  9. 2026-10-24 08:46 UTCEG score recompute
  10. 2026-10-24 08:46 UTCVendor advisory
  11. 2026-10-24 08:46 UTCGHSA enrichmentGHSA-gg3m-vvp2-p2c5 · GitHub severity HIGH · GitHub CVSS 7.5
  12. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  13. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  14. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  15. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  16. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  17. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  18. 2026-10-18 03:36 UTCEG score recompute
  19. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  20. 2026-10-17 13:12 UTCEG score recompute
  21. 2026-10-17 13:12 UTCVendor advisory
  22. 2026-10-17 13:12 UTCGHSA enrichmentGHSA-gg3m-vvp2-p2c5 · GitHub severity HIGH · GitHub CVSS 7.5
  23. 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  24. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  25. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.5% · 44th percentile
Show 75 more
  1. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  2. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  3. 2026-10-12 16:02 UTCEG score recompute
  4. 2026-10-11 19:45 UTCEG score recompute
  5. 2026-10-11 17:00 UTCEG score recompute
  6. 2026-10-11 14:25 UTCEG score recompute
  7. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  8. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  9. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  10. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  11. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  12. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  13. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  14. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  15. 2026-10-04 14:48 UTCEG score recompute
  16. 2026-10-04 14:48 UTCVendor advisory
  17. 2026-10-04 14:48 UTCGHSA enrichmentGHSA-gg3m-vvp2-p2c5 · GitHub severity HIGH · GitHub CVSS 7.5
  18. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  19. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  20. 2026-10-01 07:28 UTCEG score recompute
  21. 2026-10-01 07:28 UTCVendor advisory
  22. 2026-10-01 07:28 UTCGHSA enrichmentGHSA-gg3m-vvp2-p2c5 · GitHub severity HIGH · GitHub CVSS 7.5
  23. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  24. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  25. 2026-09-28 06:07 UTCEG score recompute
  26. 2026-09-28 06:07 UTCVendor advisory
  27. 2026-09-28 06:07 UTCGHSA enrichmentGHSA-gg3m-vvp2-p2c5 · GitHub severity HIGH · GitHub CVSS 7.5
  28. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  29. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  30. 2026-09-26 00:27 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  31. 2026-09-24 03:22 UTCEG score recompute
  32. 2026-09-24 03:22 UTCVendor advisory
  33. 2026-09-24 03:22 UTCGHSA enrichmentGHSA-gg3m-vvp2-p2c5 · GitHub severity HIGH · GitHub CVSS 7.5
  34. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  35. 2026-09-23 01:24 UTCEG score recompute
  36. 2026-09-23 01:24 UTCVendor advisory
  37. 2026-09-23 01:24 UTCGHSA enrichmentGHSA-gg3m-vvp2-p2c5 · GitHub severity HIGH · GitHub CVSS 7.5
  38. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  39. 2026-09-20 05:56 UTCEG score recompute
  40. 2026-09-20 05:56 UTCVendor advisory
  41. 2026-09-20 05:56 UTCGHSA enrichmentGHSA-gg3m-vvp2-p2c5 · GitHub severity HIGH · GitHub CVSS 7.5
  42. 2026-09-19 00:20 UTCEG score recompute
  43. 2026-09-19 00:20 UTCVendor advisory
  44. 2026-09-19 00:20 UTCGHSA enrichmentGHSA-gg3m-vvp2-p2c5 · GitHub severity HIGH · GitHub CVSS 7.5
  45. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  46. 2026-09-18 03:48 UTCEG score recompute
  47. 2026-09-18 03:48 UTCVendor advisory
  48. 2026-09-18 03:48 UTCGHSA enrichmentGHSA-gg3m-vvp2-p2c5 · GitHub severity HIGH · GitHub CVSS 7.5
  49. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  50. 2026-09-17 05:05 UTCEG score recompute
  51. 2026-09-17 05:05 UTCVendor advisory
  52. 2026-09-17 05:05 UTCGHSA enrichmentGHSA-gg3m-vvp2-p2c5 · GitHub severity HIGH · GitHub CVSS 7.5
  53. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  54. 2026-09-16 12:37 UTCEG score recompute
  55. 2026-09-16 12:37 UTCVendor advisory
  56. 2026-09-16 12:37 UTCGHSA enrichmentGHSA-gg3m-vvp2-p2c5 · GitHub severity HIGH · GitHub CVSS 7.5
  57. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  58. 2026-09-14 04:45 UTCEG score recompute
  59. 2026-09-14 04:45 UTCVendor advisory
  60. 2026-09-14 04:45 UTCGHSA enrichmentGHSA-gg3m-vvp2-p2c5 · GitHub severity HIGH · GitHub CVSS 7.5
  61. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  62. 2026-09-13 15:56 UTCVendor advisory
  63. 2026-09-13 15:56 UTCGHSA enrichmentGHSA-gg3m-vvp2-p2c5 · GitHub severity HIGH · GitHub CVSS 7.5
  64. 2026-09-13 02:52 UTCEG score recompute
  65. 2026-09-13 02:52 UTCVendor advisory
  66. 2026-09-13 02:52 UTCGHSA enrichmentGHSA-gg3m-vvp2-p2c5 · GitHub severity HIGH · GitHub CVSS 7.5
  67. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  68. 2026-09-12 12:32 UTCVendor advisory
  69. 2026-09-12 12:32 UTCGHSA enrichmentGHSA-gg3m-vvp2-p2c5 · GitHub severity HIGH · GitHub CVSS 7.5
  70. 2026-09-11 21:50 UTCEG score recompute
  71. 2026-09-11 21:50 UTCVendor advisory
  72. 2026-09-11 21:50 UTCGHSA enrichmentGHSA-gg3m-vvp2-p2c5 · GitHub severity HIGH · GitHub CVSS 7.5
  73. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  74. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  75. 2026-09-11 09:01 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-46600?
CVE-2026-46600 is a high-severity vulnerability; its CVE record was published on July 21, 2026. Parsing an invalid SVCB or HTTPS RR can panic when the size of a parameter value overflows the message buffer.
When was the CVE record for CVE-2026-46600 published?
The CVE record for CVE-2026-46600 was published on July 21, 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 October 24, 2026; the record at its source may have been updated since.
Is CVE-2026-46600 actively exploited?
CVE-2026-46600 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (45th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-46600?
CVE-2026-46600 has a CVSS v3.1 base score of 7.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-46600?
A fix for CVE-2026-46600 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-46600 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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