CVE-2026-58016

CRITICALNVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.1 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 64% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
Trending — Patch released this week
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.1Exploit: None knownExposed: 0

A fix is available — apply it.

A flaw was found in GLib. A state confusion issue exists in g_dbus_node_info_new_for_xml() in the gio/gdbusintrospection.c file when processing malformed D-Bus introspection XML, specifically with a element nested within other elements like , , or . This issue can cause an unsigned integer overflow and lead to an out-of-bounds read, resulting in a denial of service.

CVSS v3
9.1
EG Score
9.1(medium)
EG Risk
56(Track)
EG Risk 56/100SSVC: Track

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
Severity91% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
36%
KEV
Not listed

Published

June 30, 2026

Last Modified

July 24, 2026

Advisory Details (3)

Auto-updated Jun 30, 2026
🔬 Proof of concept available. Patch available. Sources: redhat.
generic🟡 PoC Available

(#YWH-PGM9867-204) Integer Underflow (CWE-191) on GLib through gio/gdbusintrospection.c via "g_dbus_node_info_new_for_xml" (#3932) · Issues · GNOME / GLib · GitLab

https://gitlab.gnome.org/GNOME/glib/-/issues/3932
redhat

2492257 – (CVE-2026-58016) CVE-2026-58016 glib: integer underflow in gio/gdbusintrospection.c via "g_dbus_node_info_new_for_xml"

https://bugzilla.redhat.com/show_bug.cgi?id=2492257
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-58016

Vendor Advisories for CVE-2026-58016(6)

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

Patch Availability(4)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatrhui5/rhua-rhel9:17847950762026-07-23redhat
redhatglib2-0:2.80.4-12.el10_2.142026-07-20redhat
redhatglib2-0:2.56.4-170.el8_102026-07-20redhat
redhatglib2-0:2.68.4-19.el9_8.22026-07-20redhat

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 30× in last 7d / 109× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. 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. Most recent first.

Showing the most recent 100 of 109 total refreshes for this CVE.

  1. 2026-07-27 08:53 UTCVendor advisory
  2. 2026-07-27 08:52 UTCGHSA enrichment
  3. 2026-07-27 05:11 UTCVendor advisory
  4. 2026-07-27 05:11 UTCGHSA enrichment
  5. 2026-07-27 01:03 UTCVendor advisory
  6. 2026-07-27 01:03 UTCGHSA enrichment
  7. 2026-07-26 21:19 UTCVendor advisory
  8. 2026-07-26 21:19 UTCGHSA enrichment
  9. 2026-07-26 17:39 UTCEG score recompute
  10. 2026-07-26 17:39 UTCVendor advisory
  11. 2026-07-26 17:39 UTCGHSA enrichment
  12. 2026-07-26 14:54 UTCEPSS rescore
  13. 2026-07-26 14:54 UTCEPSS rescore
  14. 2026-07-26 13:54 UTCEG score recompute
  15. 2026-07-26 13:54 UTCVendor advisory
  16. 2026-07-26 13:54 UTCGHSA enrichment
  17. 2026-07-26 05:11 UTCEG score recompute
  18. 2026-07-26 05:11 UTCVendor advisory
  19. 2026-07-26 05:11 UTCGHSA enrichment
  20. 2026-07-25 14:18 UTCEPSS rescore
  21. 2026-07-25 14:18 UTCEPSS rescore
  22. 2026-07-24 14:18 UTCEPSS rescore
  23. 2026-07-24 14:18 UTCEPSS rescore
  24. 2026-07-23 14:18 UTCEPSS rescore
  25. 2026-07-23 14:18 UTCEPSS rescore
Show 75 more
  1. 2026-07-23 03:20 UTCEG score recompute▲ 1.60
  2. 2026-07-22 14:08 UTCEPSS rescore
  3. 2026-07-22 14:08 UTCEPSS rescore
  4. 2026-07-21 15:25 UTCEPSS rescore
  5. 2026-07-20 17:08 UTCEPSS rescore
  6. 2026-07-19 14:31 UTCEPSS rescore
  7. 2026-07-19 14:31 UTCEPSS rescore
  8. 2026-07-19 02:29 UTCEPSS rescore
  9. 2026-07-18 10:04 UTCEPSS rescore
  10. 2026-07-17 03:06 UTCVendor advisory
  11. 2026-07-17 03:06 UTCGHSA enrichment
  12. 2026-07-16 17:03 UTCEPSS rescore
  13. 2026-07-16 15:47 UTCVendor advisory
  14. 2026-07-16 15:47 UTCGHSA enrichment
  15. 2026-07-16 04:13 UTCVendor advisory
  16. 2026-07-16 04:13 UTCGHSA enrichment
  17. 2026-07-15 16:57 UTCEPSS rescore
  18. 2026-07-15 16:57 UTCEPSS rescore
  19. 2026-07-15 16:55 UTCVendor advisory
  20. 2026-07-15 16:55 UTCGHSA enrichment
  21. 2026-07-15 05:36 UTCVendor advisory
  22. 2026-07-15 05:36 UTCGHSA enrichment
  23. 2026-07-15 02:00 UTCEPSS rescore
  24. 2026-07-15 02:00 UTCEPSS rescore
  25. 2026-07-14 18:03 UTCVendor advisory
  26. 2026-07-14 18:03 UTCGHSA enrichment
  27. 2026-07-14 06:26 UTCVendor advisory
  28. 2026-07-14 06:25 UTCGHSA enrichment
  29. 2026-07-13 22:31 UTCEPSS rescore
  30. 2026-07-13 19:06 UTCGHSA enrichment
  31. 2026-07-13 07:48 UTCGHSA enrichment
  32. 2026-07-13 06:13 UTCEPSS rescore
  33. 2026-07-13 06:13 UTCEPSS rescore
  34. 2026-07-12 20:30 UTCVendor advisory
  35. 2026-07-12 20:30 UTCGHSA enrichment
  36. 2026-07-12 09:13 UTCVendor advisory
  37. 2026-07-12 09:13 UTCGHSA enrichment
  38. 2026-07-12 05:46 UTCEPSS rescore
  39. 2026-07-11 21:56 UTCVendor advisory
  40. 2026-07-11 21:56 UTCGHSA enrichment
  41. 2026-07-11 10:39 UTCVendor advisory
  42. 2026-07-11 10:39 UTCGHSA enrichment
  43. 2026-07-11 08:27 UTCEPSS rescore
  44. 2026-07-11 08:27 UTCEPSS rescore
  45. 2026-07-10 23:21 UTCGHSA enrichment
  46. 2026-07-10 12:03 UTCGHSA enrichment
  47. 2026-07-10 00:44 UTCGHSA enrichment
  48. 2026-07-09 19:10 UTCEPSS rescore
  49. 2026-07-09 19:10 UTCEPSS rescore
  50. 2026-07-09 13:22 UTCGHSA enrichment
  51. 2026-07-09 02:04 UTCGHSA enrichment
  52. 2026-07-08 15:16 UTCEPSS rescore
  53. 2026-07-08 15:16 UTCEPSS rescore
  54. 2026-07-08 14:44 UTCGHSA enrichment
  55. 2026-07-08 03:25 UTCGHSA enrichment
  56. 2026-07-07 16:08 UTCGHSA enrichment
  57. 2026-07-07 13:46 UTCEPSS rescore
  58. 2026-07-07 13:46 UTCEPSS rescore
  59. 2026-07-07 04:50 UTCGHSA enrichment
  60. 2026-07-06 17:32 UTCGHSA enrichment
  61. 2026-07-06 16:27 UTCEPSS rescore
  62. 2026-07-06 16:27 UTCEPSS rescore
  63. 2026-07-06 06:11 UTCGHSA enrichment
  64. 2026-07-06 02:23 UTCEPSS rescore
  65. 2026-07-06 02:23 UTCEPSS rescore
  66. 2026-07-05 18:52 UTCGHSA enrichment
  67. 2026-07-05 07:34 UTCGHSA enrichment
  68. 2026-07-05 02:31 UTCEPSS rescore
  69. 2026-07-05 02:30 UTCEPSS rescore
  70. 2026-07-04 20:17 UTCGHSA enrichment
  71. 2026-07-04 08:59 UTCGHSA enrichment
  72. 2026-07-04 06:31 UTCEPSS rescore
  73. 2026-07-04 06:31 UTCEPSS rescore
  74. 2026-07-03 21:42 UTCGHSA enrichment
  75. 2026-07-03 10:25 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-58016?
CVE-2026-58016 is a critical vulnerability published on June 30, 2026. A flaw was found in GLib. A state confusion issue exists in gdbusnodeinfonewforxml() in the gio/gdbusintrospection.c file when processing malformed D-Bus introspection XML, specifically with a <node> element nested within other elements like <method>, <signal>, <property> or <arg>. This issue can…
When was CVE-2026-58016 disclosed?
CVE-2026-58016 was first published in the National Vulnerability Database on June 30, 2026, with the most recent update on July 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-58016 actively exploited?
CVE-2026-58016 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 64.4% of all scored CVEs.
What is the CVSS score of CVE-2026-58016?
CVE-2026-58016 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2026-58016?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-58016, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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