MGASA-2026-0378: expat Mageia

CVSS: UnknownPublished
Published 05-09-2026Last modified 05-09-2026
Open JSON

Vulnerability summary

MGASA-2026-0378 is a vulnerability in expat Mageia with no CVSS score yet.

Overall risk
0/100
0100
Minimal · default modelHow is this calculated?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
Not scored
0%100%
No EPSS score yet
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 4 · Downstream 0
CVE-2026-66046CVE-2026-76641CVE-2026-76956CVE-2026-76957

Timeline

  1. 05-09-2026
    PublishedVulnerability first disclosed.
  2. 05-09-2026
    Last modifiedVulnerability information updated.

Description

Updated mingw-expat & expat packages fix security vulnerabilities Expat Denial of Service via storeAtts() Quadratic Complexity. (CVE-2026-66046) Expat Out-of-Bounds Read via dtdCopy. (CVE-2026-76641) In libexpat 2.8.2 and 2.8.3 before 2.8.4, misinterpretation of getentropy's return code leads to insufficient entropy, which results in being vulnerable to hash flooding attacks, causing a denial of service via crafted XML content. (CVE-2026-76956) libexpat before 2.8.4 lacks handler call depth tracking with custom encoding callbacks. Thus, a use-after-free can occur. (CVE-2026-76957)

CVSS metrics

Risk metrics not yet published.

EPSS trend

No EPSS score has been published for this record yet.

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Mageia2 products
  • expat< 2.8.4-1.mga10
  • mingw-expat< 2.8.4-1.mga10

1 vendor · 2 products

References

9 links