CVE-2026-27141

HIGHNVD 7.57.5
EchelonGraph scoreMEDIUM confidence

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

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-02-26. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 4 sources updated this week
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: 0.7%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Due to missing nil check, sending 0x0a-0x0f HTTP/2 frames will cause a running server to panic

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.
Exploitation0.7% × 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
0.7%
EPSS %ILE
51st
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
0.7% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-17). 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

February 26, 2026

Last Modified

June 17, 2026

Advisory Details (3)

Auto-updated Jun 10, 2026
Patch available.
Web page

GO-2026-4559 - Go Packages

https://pkg.go.dev/vuln/GO-2026-4559
Web page

x/net/http2: nil panic in typeFrameParser for frame types 0x0a-0x0f · Issue #77652 · golang/go · GitHub

https://go.dev/issue/77652

Patch Availability(6)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatmulticluster-engine/hypershift-addon-rhel9-operator:17869120062026-08-19redhat
redhatodf4/rook-ceph-rhel9-operator:17829342842026-07-09redhat
redhatopenshift-pipelines/pipelines-rhel9-operator:17806450122026-06-17redhat
redhatopenshift-pipelines/pipelines-operator-bundle:17816864942026-06-17redhat
redhatgolang1-25-main-1.25.9-1.hum12026-04-10redhat
redhatgolang1-26-main-1.26.2-1.hum12026-04-09redhat

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

(1 across 1 ecosystem)
Go(1)
PackageVulnerable rangeFix by version rangeDependents
golang.org/x/net—
  • 0.50.0 up to 0.51.0: fixed in 0.51.0
—

Weakness Classification(1)

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

Additional Vendor Advisories

(1)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 11× in last 7d / 31× 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 97 of 250 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. 3 repeat rows among the latest 100 are merged into the row they repeat. The 153 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  2. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  3. 2026-10-18 03:51 UTCEG score recompute
  4. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  5. 2026-10-17 16:30 UTCEG score recompute
  6. 2026-10-17 16:30 UTCVendor advisory
  7. 2026-10-17 16:29 UTCGHSA enrichmentGHSA-8fj7-8h3w-xwfm · GitHub severity HIGH · GitHub CVSS 7.5
  8. 2026-10-16 16:41 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  9. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  10. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  11. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  12. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  13. 2026-10-12 16:17 UTCEG score recompute
  14. 2026-10-11 20:00 UTCEG score recompute
  15. 2026-10-11 17:13 UTCEG score recompute
  16. 2026-10-11 14:44 UTCEG score recompute
  17. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  18. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  19. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  20. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  21. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  22. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  23. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  24. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  25. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.7% · 49th percentile
Show 72 more
  1. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  2. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  3. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  4. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  5. 2026-09-26 00:26 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  6. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  7. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  8. 2026-09-17 19:30 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  9. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  10. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  11. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  12. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  13. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  14. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  15. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  16. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  17. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  18. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  19. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  20. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  21. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  22. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  23. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  24. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  25. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  26. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  27. 2026-08-25 13:48 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  28. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  29. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  30. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  31. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  32. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  33. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  34. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  35. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  36. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  37. 2026-08-14 21:09 UTCVendor advisory
  38. 2026-08-14 21:09 UTCGHSA enrichmentGHSA-8fj7-8h3w-xwfm · GitHub severity HIGH · GitHub CVSS 7.5
  39. 2026-08-14 08:54 UTCEG score recompute
  40. 2026-08-14 08:54 UTCVendor advisory
  41. 2026-08-14 08:54 UTCGHSA enrichmentGHSA-8fj7-8h3w-xwfm · GitHub severity HIGH · GitHub CVSS 7.5
  42. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  43. 2026-08-13 00:52 UTCEG score recompute
  44. 2026-08-13 00:52 UTCVendor advisory
  45. 2026-08-13 00:52 UTCGHSA enrichmentGHSA-8fj7-8h3w-xwfm · GitHub severity HIGH · GitHub CVSS 7.5
  46. 2026-08-12 13:50 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  47. 2026-08-11 23:48 UTCEG score recompute
  48. 2026-08-11 23:48 UTCVendor advisory
  49. 2026-08-11 23:48 UTCGHSA enrichmentGHSA-8fj7-8h3w-xwfm · GitHub severity HIGH · GitHub CVSS 7.5
  50. 2026-08-11 13:42 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  51. 2026-08-11 06:15 UTCEG score recompute
  52. 2026-08-11 06:15 UTCVendor advisory
  53. 2026-08-11 06:15 UTCGHSA enrichmentGHSA-8fj7-8h3w-xwfm · GitHub severity HIGH · GitHub CVSS 7.5
  54. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  55. 2026-08-10 08:39 UTCVendor advisory
  56. 2026-08-10 08:39 UTCGHSA enrichmentGHSA-8fj7-8h3w-xwfm · GitHub severity HIGH · GitHub CVSS 7.5
  57. 2026-08-09 19:23 UTCEG score recompute
  58. 2026-08-09 19:23 UTCVendor advisory
  59. 2026-08-09 19:23 UTCGHSA enrichmentGHSA-8fj7-8h3w-xwfm · GitHub severity HIGH · GitHub CVSS 7.5
  60. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  61. 2026-08-09 08:33 UTCEG score recompute
  62. 2026-08-09 08:33 UTCVendor advisory
  63. 2026-08-09 08:33 UTCGHSA enrichmentGHSA-8fj7-8h3w-xwfm · GitHub severity HIGH · GitHub CVSS 7.5
  64. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  65. 2026-08-08 07:25 UTCVendor advisory
  66. 2026-08-08 07:25 UTCGHSA enrichmentGHSA-8fj7-8h3w-xwfm · GitHub severity HIGH · GitHub CVSS 7.5
  67. 2026-08-07 20:35 UTCEG score recompute
  68. 2026-08-07 20:35 UTCVendor advisory
  69. 2026-08-07 20:35 UTCGHSA enrichmentGHSA-8fj7-8h3w-xwfm · GitHub severity HIGH · GitHub CVSS 7.5
  70. 2026-08-06 13:46 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  71. 2026-08-06 02:57 UTCEG score recompute
  72. 2026-08-06 02:57 UTCVendor advisory

Frequently asked(5)

What is CVE-2026-27141?
CVE-2026-27141 is a high-severity vulnerability; its CVE record was published on February 26, 2026. Due to missing nil check, sending 0x0a-0x0f HTTP/2 frames will cause a running server to panic
When was the CVE record for CVE-2026-27141 published?
The CVE record for CVE-2026-27141 was published on February 26, 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 June 17, 2026; the record at its source may have been updated since.
Is CVE-2026-27141 actively exploited?
CVE-2026-27141 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.7% probability of exploitation in the next 30 days (51st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-27141?
CVE-2026-27141 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-27141?
A fix for CVE-2026-27141 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-27141 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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