CVE-2026-58011

mediumCVSS 6.5covered by 2 sourcesfirst seen 2026-06-09

A flaw was found in GLib. An out-of-bounds read of only 2 bytes can occur in the g_date_time_get_ymd function in the glib/gdatetime.c file when an invalid GDateTime object produced by the g_date_time_add_full function is processed. This flaw can corrupt the date output and potentially cause logic errors that may lead to a denial of service.

CSIRTS triage

What: An out-of-bounds read occurs in 'g_date_time_get_ymd' due to invalid gdatetime.
Who is affected: Deployments of Glib that call the affected function with invalid data.
Urgency: Remediation is important due to the medium severity of the vulnerability.
Action: Update to the latest version of Glib to resolve this issue.

AI-assisted analysis generated from the source advisory — verify against the original.

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Exploitation outlook

Low exploitation risk0.34% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 26% of all EPSS-scored CVEs.

Advisory coverage (2)

mediumCVE-2026-58011: A flaw was found in GLib. An out-of-bounds read of only 2 bytes can occur in the g_date_time_g…nvd · 2026-06-30
mediumCVE-2026-58011: Glib: out-of-bounds read in glib/gdatetime.c:g_date_time_get_ymd via invalid gdatetimemsrc · 2026-06-09

External references

NVD record for CVE-2026-58011

CVE.org record

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