CVE-2026-12975

HIGHPre-NVD 8.58.5
EchelonGraph scoreMEDIUM confidence

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

Score 8.5 from GitHub Security Advisory (severity: HIGH) published 2026-06-26. A secondary CVSS source baseline 8.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
8.5EG
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: 8.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

A flaw was found in Apicurio Registry. The ContentTypeUtil.isParsableXml() method creates a SAXParserFactory without enabling secure processing features or disabling external entity resolution. An attacker with artifact-write permission (or unauthenticated when the registry runs with default configuration) can upload a crafted XML document to trigger blind server-side request forgery (SSRF) via external DTD/entity fetch, or cause denial of service via entity expansion.

CVSS v3
8.5
EG Score
8.5HIGHmedium confidence
EG Risk
38
EG Risk 38/100

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed (value × EchelonGraph’s weight)
Severity85% × 45%
The EG Score, 8.5 of 10.
Exploitation0.4% × 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
36th
KEV
Not listed

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

June 25, 2026

Last Modified

August 26, 2026

Advisory Details (2)

Auto-updated Jun 25, 2026
Patch available. Sources: redhat.
Red Hat

2491688 – (CVE-2026-12975) CVE-2026-12975 Apicurio/apicurio-registry: apicurio-registry: Unhardened SAXParser in content-type detection leads to blind XXE / SSRF / billion-laughs DoS

https://bugzilla.redhat.com/show_bug.cgi?id=2491688
Red HatMentions a patch (unverified)

cve-details

https://access.redhat.com/security/cve/CVE-2026-12975

Vendor Advisories for CVE-2026-12975(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
redhatapicurio/apicurio-registry-rhel92026-08-25redhat

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.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 37× 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 257 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 157 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-11 20:12 UTCEG score recompute
  2. 2026-10-11 18:24 UTCEG score recompute
  3. 2026-10-11 14:57 UTCEG score recompute
  4. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  5. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  6. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  7. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  8. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  9. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  10. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  11. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  12. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  13. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  14. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  15. 2026-09-29 15:20 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  16. 2026-09-28 13:50 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  17. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  18. 2026-09-23 13:47 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  19. 2026-09-23 08:24 UTCEG score recompute
  20. 2026-09-23 08:24 UTCVendor advisory
  21. 2026-09-23 08:24 UTCGHSA enrichmentGHSA-7g64-f2hm-vjxp · GitHub severity HIGH · GitHub CVSS 8.5
  22. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  23. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  24. 2026-09-18 07:19 UTCEG score recompute
  25. 2026-09-18 07:19 UTCVendor advisory
Show 75 more
  1. 2026-09-18 07:19 UTCGHSA enrichmentGHSA-7g64-f2hm-vjxp · GitHub severity HIGH · GitHub CVSS 8.5
  2. 2026-09-16 05:14 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  3. 2026-09-14 01:16 UTCEG score recompute
  4. 2026-09-14 01:16 UTCVendor advisory
  5. 2026-09-14 01:16 UTCGHSA enrichmentGHSA-7g64-f2hm-vjxp · GitHub severity HIGH · GitHub CVSS 8.5
  6. 2026-09-13 16:46 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  7. 2026-09-13 09:37 UTCVendor advisory
  8. 2026-09-13 09:37 UTCGHSA enrichmentGHSA-7g64-f2hm-vjxp · GitHub severity HIGH · GitHub CVSS 8.5
  9. 2026-09-12 15:41 UTCEG score recompute
  10. 2026-09-12 15:41 UTCVendor advisory
  11. 2026-09-12 15:41 UTCGHSA enrichmentGHSA-7g64-f2hm-vjxp · GitHub severity HIGH · GitHub CVSS 8.5
  12. 2026-09-12 15:00 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  13. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  14. 2026-09-11 09:36 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  15. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  16. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  17. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  18. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  19. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  20. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  21. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  22. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  23. 2026-08-30 19:28 UTCEG score recompute
  24. 2026-08-30 19:28 UTCVendor advisory
  25. 2026-08-30 19:28 UTCGHSA enrichmentGHSA-7g64-f2hm-vjxp · GitHub severity HIGH · GitHub CVSS 8.5
  26. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  27. 2026-08-30 01:21 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  28. 2026-08-28 21:40 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  29. 2026-08-27 23:16 UTCEG score recompute
  30. 2026-08-27 23:16 UTCVendor advisory
  31. 2026-08-27 23:16 UTCGHSA enrichmentGHSA-7g64-f2hm-vjxp · GitHub severity HIGH · GitHub CVSS 8.5
  32. 2026-08-27 14:24 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  33. 2026-08-26 16:21 UTCEG score recompute
  34. 2026-08-26 16:21 UTCVendor advisory
  35. 2026-08-26 16:21 UTCGHSA enrichmentGHSA-7g64-f2hm-vjxp · GitHub severity HIGH · GitHub CVSS 8.5
  36. 2026-08-26 12:19 UTCEG score recompute
  37. 2026-08-26 12:19 UTCVendor advisory
  38. 2026-08-26 12:19 UTCGHSA enrichmentGHSA-7g64-f2hm-vjxp · GitHub severity HIGH · GitHub CVSS 8.5
  39. 2026-08-25 15:25 UTCEG score recompute
  40. 2026-08-25 15:25 UTCGHSA enrichmentGHSA-7g64-f2hm-vjxp · GitHub severity HIGH · GitHub CVSS 8.5
  41. 2026-08-25 14:35 UTCEG score recompute
  42. 2026-08-25 14:35 UTCGHSA enrichmentGHSA-7g64-f2hm-vjxp · GitHub severity HIGH · GitHub CVSS 8.5
  43. 2026-08-25 13:48 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  44. 2026-08-25 01:28 UTCEG score recompute
  45. 2026-08-25 01:28 UTCGHSA enrichmentGHSA-7g64-f2hm-vjxp · GitHub severity HIGH · GitHub CVSS 8.5
  46. 2026-08-24 13:08 UTCEG score recompute
  47. 2026-08-24 13:08 UTCGHSA enrichmentGHSA-7g64-f2hm-vjxp · GitHub severity HIGH · GitHub CVSS 8.5
  48. 2026-08-23 23:10 UTCGHSA enrichmentGHSA-7g64-f2hm-vjxp · GitHub severity HIGH · GitHub CVSS 8.5
  49. 2026-08-23 10:35 UTCEG score recompute
  50. 2026-08-23 10:35 UTCGHSA enrichmentGHSA-7g64-f2hm-vjxp · GitHub severity HIGH · GitHub CVSS 8.5
  51. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  52. 2026-08-22 22:19 UTCGHSA enrichmentGHSA-7g64-f2hm-vjxp · GitHub severity HIGH · GitHub CVSS 8.5
  53. 2026-08-22 09:55 UTCEG score recompute
  54. 2026-08-22 09:55 UTCGHSA enrichmentGHSA-7g64-f2hm-vjxp · GitHub severity HIGH · GitHub CVSS 8.5
  55. 2026-08-21 23:48 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  56. 2026-08-21 19:48 UTCGHSA enrichmentGHSA-7g64-f2hm-vjxp · GitHub severity HIGH · GitHub CVSS 8.5
  57. 2026-08-21 07:32 UTCEG score recompute
  58. 2026-08-21 07:32 UTCGHSA enrichmentGHSA-7g64-f2hm-vjxp · GitHub severity HIGH · GitHub CVSS 8.5
  59. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  60. 2026-08-20 19:16 UTCGHSA enrichmentGHSA-7g64-f2hm-vjxp · GitHub severity HIGH · GitHub CVSS 8.5
  61. 2026-08-20 07:00 UTCEG score recompute
  62. 2026-08-20 07:00 UTCGHSA enrichmentGHSA-7g64-f2hm-vjxp · GitHub severity HIGH · GitHub CVSS 8.5
  63. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  64. 2026-08-19 13:28 UTCGHSA enrichmentGHSA-7g64-f2hm-vjxp · GitHub severity HIGH · GitHub CVSS 8.5
  65. 2026-08-19 01:12 UTCEG score recompute
  66. 2026-08-19 01:12 UTCGHSA enrichmentGHSA-7g64-f2hm-vjxp · GitHub severity HIGH · GitHub CVSS 8.5
  67. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  68. 2026-08-17 14:50 UTCEG score recompute
  69. 2026-08-17 14:50 UTCGHSA enrichmentGHSA-7g64-f2hm-vjxp · GitHub severity HIGH · GitHub CVSS 8.5
  70. 2026-08-17 02:34 UTCEG score recompute
  71. 2026-08-17 02:34 UTCGHSA enrichmentGHSA-7g64-f2hm-vjxp · GitHub severity HIGH · GitHub CVSS 8.5
  72. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  73. 2026-08-16 14:18 UTCEG score recompute
  74. 2026-08-16 14:18 UTCGHSA enrichmentGHSA-7g64-f2hm-vjxp · GitHub severity HIGH · GitHub CVSS 8.5
  75. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.2% · 14th percentile

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Frequently asked(5)

What is CVE-2026-12975?
CVE-2026-12975 is a high-severity vulnerability; its CVE record was published on June 25, 2026. A flaw was found in Apicurio Registry. The ContentTypeUtil.isParsableXml() method creates a SAXParserFactory without enabling secure processing features or disabling external entity resolution. An attacker with artifact-write permission (or unauthenticated when the registry runs with default…
When was CVE-2026-12975 made public?
CVE-2026-12975 was made public on June 10, 2026: that is the date its CVE record's CNA, Red Hat, Inc., gives for when the vulnerability was made public. The CVE record itself was published on June 25, 2026. EchelonGraph's copy of the record carries a last-modified date of August 26, 2026; the record at its source may have been updated since.
Is CVE-2026-12975 actively exploited?
CVE-2026-12975 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (36th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-12975?
CVE-2026-12975 has a CVSS base score of 8.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-12975?
A fix for CVE-2026-12975 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-12975 are linked in the Vendor Advisories panel on this page.

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