CVE-2026-58016

CRITICALNVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.1 under NVD CVSS v3. EPSS exploit probability: 0.5%, top 56% 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 — 4 sources updated 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: 1%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 node element nested within other elements like method, signal, property or arg. 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%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
45%
KEV
Not listed

Published

June 30, 2026

Last Modified

August 25, 2026

Advisory Details (13)

Auto-updated Sep 15, 2026
Patch available. Sources: redhat.
redhat Patch Available

Affected: Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.6 Extended Update Support

https://access.redhat.com/errata/RHSA-2026:51181
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions.

https://access.redhat.com/errata/RHSA-2026:51177
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions.

https://access.redhat.com/errata/RHSA-2026:51176
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.6 Extended Update Support.

https://access.redhat.com/errata/RHSA-2026:51175
redhat Patch Available

Affected: Red Hat Enterprise Linux 8.

https://access.redhat.com/errata/RHSA-2026:49512
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:46836
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:44481
redhat Patch Available

Affected: Red Hat Enterprise Linux 8.

https://access.redhat.com/errata/RHSA-2026:42090
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.

https://access.redhat.com/errata/RHSA-2026:42089
redhat Patch Available

Affected: Red Hat Enterprise Linux 10.

https://access.redhat.com/errata/RHSA-2026:42063
generic🟡 PoC Available

(CVE-2026-58016) (#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 Patch Available

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

Affected: Red Hat Enterprise Linux 10

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(11)

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

Patch Availability(16)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatrhui5/rhua-tp-rhel9:17872412602026-08-24redhat
redhatinsights-proxy/insights-proxy-container-rhel9:17864336562026-08-11redhat
redhatglib2-0:2.56.4-158.el8_6.62026-08-06redhat
redhatglib2-0:2.56.4-165.el8_8.12026-08-06redhat
redhatglib2-0:2.56.1-13.el7_92026-08-06redhat
redhatglib2-0:2.68.4-16.el9_6.62026-08-06redhat
redhatglib2-0:2.80.4-4.el10_0.102026-08-06redhat
redhatglib2-0:2.68.4-7.el9_2.62026-08-06redhat
redhatglib2-0:2.68.4-14.el9_4.72026-08-06redhat
redhatglib2-0:2.56.4-10.el8_4.62026-08-06redhat
redhatmingw-glib2-0:2.70.1-9.el8_102026-08-03redhat
redhatdiscovery/discovery-ui-rhel9:17848217502026-07-27redhat
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.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
glib2.02.66.8-1 ... 2.89.3-3 (187 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
glib2.02.74.6-2 ... 2.89.4-2 (146 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
glib2.02.84.3-1 ... 2.89.4-2 (49 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
glib2.02.84.3-1 ... 2.88.3-1 (40 versions)2.88.3-2—

Weakness Classification(1)

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

Additional Vendor Advisories

(7)

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 25× in last 7d / 118× 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 561 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

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 cause an…
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 August 25, 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 1% probability of exploitation in the next 30 days, which ranks it in the top 55.4% 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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