CVE-2026-10582

HIGHPre-NVD 7.47.4
EchelonGraph scoreMEDIUM confidence

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

Score 7.4 from GitHub Security Advisory (severity: HIGH) published 2026-08-24. A secondary CVSS source baseline 7.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 4 sources updated this week

Also known asEUVD-2026-64775 (ENISA EUVD) · GHSA-wg2f-v5x6-m39r (GitHub Security Advisories)Source: ENISA EUVD

7.4EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 7.4Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Hugo's security.http.urls allowlist is the only control on outbound fetches made by resources.GetRemote, and it inspects the URL text alone. CheckAllowedHTTPURL in config/security/securityConfig.go applies the configured pattern list and then re-checks a canonicalised form of an integer, hex or octal IPv4 host, but it never resolves the hostname and never inspects the address the HTTP client actually connects to. The client constructed in resources/resource_factories/create/create.go installs no dial-time hook, so no check occurs at connection time either. A hostname that resolves to a loopback, private or cloud-metadata address therefore satisfies the policy, and the response body is embedded in the generated site. An attacker who can supply a URL through content, for example a front-matter field or a CMS field, can make the build fetch an internal endpoint and publish the response in the static output, so the build artifact itself carries the data out.

CVSS v3
7.4
EG Score
7.4HIGHmedium confidence
EG Risk
33
EG Risk 33/100

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)
Severity74% × 45%
Impact severity (EG Severity): CVSS 7.4 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.3% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (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.
EPSS PROB
0.4%
EPSS %ILE
37th
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 (7.4): severity, escalated by confirmed exploitation. This CVE's 7.4 is its impact severity (EG Severity), not escalated.

EG Severity
7.4 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.4% within 30 daysSource: FIRST EPSS. 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 every mission impact level.CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade 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 every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (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)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (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

August 24, 2026

Last Modified

October 12, 2026

Advisory Details (4)

Auto-updated Aug 24, 2026
Patch available. Sources: github.
Web page

Hugo 0.91.0 through 0.165.0 Server-Side Request Forgery via security.http.urls Lacking Destination Address Validation | Advisories | VulnCheck

https://www.vulncheck.com/advisories/hugo-through-server-side-request-forgery-via-security-http-urls-lacking-destination-address-validation
Web page

hugo/resources/resource_factories/create/create.go at v0.165.0 · gohugoio/hugo · GitHub

https://github.com/gohugoio/hugo/blob/v0.165.0/resources/resource_factories/create/create.go
GitHub advisory

hugo/config/security/securityConfig.go at v0.165.0 · gohugoio/hugo · GitHub

https://github.com/gohugoio/hugo/blob/v0.165.0/config/security/securityConfig.go
Web page

GitHub - gohugoio/hugo: The world’s fastest framework for building websites. · GitHub

https://github.com/gohugoio/hugo

Vendor Advisories for CVE-2026-10582(2)

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

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhathugo-main-0.166.0-0.1.hum12026-09-09redhat

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

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
hugo0.111.3-1 ... 0.166.0-1 (84 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
hugo0.131.0-1 ... 0.166.0-1 (47 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
hugo0.131.0-1 ... 0.166.0-1 (47 versions)
  • every version on: no fix on record
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 93× 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 240 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 140 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  2. 2026-10-26 16:30 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  3. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  4. 2026-10-25 14:55 UTCEG score recompute
  5. 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  6. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  7. 2026-10-22 16:33 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  8. 2026-10-22 11:27 UTCEG score recompute
  9. 2026-10-22 11:27 UTCVendor advisory
  10. 2026-10-22 11:27 UTCGHSA enrichmentGHSA-wg2f-v5x6-m39r · GitHub severity HIGH · GitHub CVSS 7.4
  11. 2026-10-21 16:32 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  12. 2026-10-20 16:32 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  13. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  14. 2026-10-18 23:17 UTCEG score recompute
  15. 2026-10-18 23:17 UTCVendor advisory
  16. 2026-10-18 23:17 UTCGHSA enrichmentGHSA-wg2f-v5x6-m39r · GitHub severity HIGH · GitHub CVSS 7.4
  17. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  18. 2026-10-18 05:08 UTCEG score recompute
  19. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  20. 2026-10-16 16:40 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  21. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  22. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  23. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  24. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  25. 2026-10-12 15:28 UTCEG score recompute
Show 75 more
  1. 2026-10-12 15:28 UTCVendor advisory
  2. 2026-10-12 15:28 UTCGHSA enrichmentGHSA-wg2f-v5x6-m39r · GitHub severity HIGH · GitHub CVSS 7.4
  3. 2026-10-11 20:15 UTCEG score recompute
  4. 2026-10-11 18:27 UTCEG score recompute
  5. 2026-10-11 15:00 UTCEG score recompute
  6. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  7. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  8. 2026-10-10 13:13 UTCEG score recompute
  9. 2026-10-10 13:13 UTCVendor advisory
  10. 2026-10-10 13:12 UTCGHSA enrichmentGHSA-wg2f-v5x6-m39r · GitHub severity HIGH · GitHub CVSS 7.4
  11. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  12. 2026-10-09 05:00 UTCEG score recompute
  13. 2026-10-09 05:00 UTCVendor advisory
  14. 2026-10-09 05:00 UTCGHSA enrichmentGHSA-wg2f-v5x6-m39r · GitHub severity HIGH · GitHub CVSS 7.4
  15. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  16. 2026-10-08 04:15 UTCEG score recompute
  17. 2026-10-08 04:15 UTCVendor advisory
  18. 2026-10-08 04:15 UTCGHSA enrichmentGHSA-wg2f-v5x6-m39r · GitHub severity HIGH · GitHub CVSS 7.4
  19. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  20. 2026-10-07 05:48 UTCVendor advisory
  21. 2026-10-07 05:48 UTCGHSA enrichmentGHSA-wg2f-v5x6-m39r · GitHub severity HIGH · GitHub CVSS 7.4
  22. 2026-10-06 16:42 UTCEG score recompute
  23. 2026-10-06 16:42 UTCVendor advisory
  24. 2026-10-06 16:41 UTCGHSA enrichmentGHSA-wg2f-v5x6-m39r · GitHub severity HIGH · GitHub CVSS 7.4
  25. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  26. 2026-10-06 02:56 UTCEG score recompute
  27. 2026-10-06 02:56 UTCVendor advisory
  28. 2026-10-06 02:56 UTCGHSA enrichmentGHSA-wg2f-v5x6-m39r · GitHub severity HIGH · GitHub CVSS 7.4
  29. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  30. 2026-10-05 09:51 UTCEG score recompute
  31. 2026-10-05 09:51 UTCVendor advisory
  32. 2026-10-05 09:51 UTCGHSA enrichmentGHSA-wg2f-v5x6-m39r · GitHub severity HIGH · GitHub CVSS 7.4
  33. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  34. 2026-10-04 20:44 UTCVendor advisory
  35. 2026-10-04 20:44 UTCGHSA enrichmentGHSA-wg2f-v5x6-m39r · GitHub severity HIGH · GitHub CVSS 7.4
  36. 2026-10-04 05:39 UTCVendor advisory
  37. 2026-10-04 05:39 UTCGHSA enrichmentGHSA-wg2f-v5x6-m39r · GitHub severity HIGH · GitHub CVSS 7.4
  38. 2026-10-03 16:33 UTCEG score recompute
  39. 2026-10-03 16:33 UTCVendor advisory
  40. 2026-10-03 16:33 UTCGHSA enrichmentGHSA-wg2f-v5x6-m39r · GitHub severity HIGH · GitHub CVSS 7.4
  41. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  42. 2026-10-03 02:00 UTCEG score recompute
  43. 2026-10-03 02:00 UTCVendor advisory
  44. 2026-10-03 02:00 UTCGHSA enrichmentGHSA-wg2f-v5x6-m39r · GitHub severity HIGH · GitHub CVSS 7.4
  45. 2026-10-02 12:54 UTCVendor advisory
  46. 2026-10-02 12:54 UTCGHSA enrichmentGHSA-wg2f-v5x6-m39r · GitHub severity HIGH · GitHub CVSS 7.4
  47. 2026-10-01 22:43 UTCEG score recompute
  48. 2026-10-01 22:43 UTCVendor advisory
  49. 2026-10-01 22:43 UTCGHSA enrichmentGHSA-wg2f-v5x6-m39r · GitHub severity HIGH · GitHub CVSS 7.4
  50. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  51. 2026-10-01 09:31 UTCVendor advisory
  52. 2026-10-01 09:31 UTCGHSA enrichmentGHSA-wg2f-v5x6-m39r · GitHub severity HIGH · GitHub CVSS 7.4
  53. 2026-09-30 20:25 UTCEG score recompute
  54. 2026-09-30 20:25 UTCVendor advisory
  55. 2026-09-30 20:25 UTCGHSA enrichmentGHSA-wg2f-v5x6-m39r · GitHub severity HIGH · GitHub CVSS 7.4
  56. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  57. 2026-09-30 07:18 UTCEG score recompute
  58. 2026-09-30 07:18 UTCVendor advisory
  59. 2026-09-30 07:18 UTCGHSA enrichmentGHSA-wg2f-v5x6-m39r · GitHub severity HIGH · GitHub CVSS 7.4
  60. 2026-09-29 15:20 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  61. 2026-09-29 15:16 UTCVendor advisory
  62. 2026-09-29 15:16 UTCGHSA enrichmentGHSA-wg2f-v5x6-m39r · GitHub severity HIGH · GitHub CVSS 7.4
  63. 2026-09-28 21:33 UTCEG score recompute
  64. 2026-09-28 21:33 UTCVendor advisory
  65. 2026-09-28 21:33 UTCGHSA enrichmentGHSA-wg2f-v5x6-m39r · GitHub severity HIGH · GitHub CVSS 7.4
  66. 2026-09-28 13:50 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  67. 2026-09-28 03:45 UTCVendor advisory
  68. 2026-09-28 03:45 UTCGHSA enrichmentGHSA-wg2f-v5x6-m39r · GitHub severity HIGH · GitHub CVSS 7.4
  69. 2026-09-27 14:34 UTCEG score recompute
  70. 2026-09-27 14:34 UTCVendor advisory
  71. 2026-09-27 14:33 UTCGHSA enrichmentGHSA-wg2f-v5x6-m39r · GitHub severity HIGH · GitHub CVSS 7.4
  72. 2026-09-27 00:44 UTCEG score recompute
  73. 2026-09-27 00:44 UTCVendor advisory
  74. 2026-09-27 00:44 UTCGHSA enrichmentGHSA-wg2f-v5x6-m39r · GitHub severity HIGH · GitHub CVSS 7.4
  75. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.3% · 21st percentile

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Frequently asked(5)

What is CVE-2026-10582?
CVE-2026-10582 is a high-severity vulnerability; its CVE record was published on August 24, 2026. Hugo's security.http.urls allowlist is the only control on outbound fetches made by resources.GetRemote, and it inspects the URL text alone. CheckAllowedHTTPURL in config/security/securityConfig.go applies the configured pattern list and then re-checks a canonicalised form of an integer, hex or…
When was CVE-2026-10582 made public?
CVE-2026-10582 was made public on August 12, 2026: that is the date its CVE record's CNA, VulnCheck, gives for when the vulnerability was made public. The CVE record itself was published on August 24, 2026. EchelonGraph's copy of the record carries a last-modified date of October 12, 2026; the record at its source may have been updated since.
Is CVE-2026-10582 actively exploited?
CVE-2026-10582 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (37th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-10582?
CVE-2026-10582 has a CVSS base score of 7.4 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-10582?
A fix for CVE-2026-10582 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-10582 are linked in the Vendor Advisories panel on this page.

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