CVE-2026-56408Disclosure(libexpat_project / libexpat)

LOWCVSS 6.9 · MEDIUM

Signal is active with 2 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

libexpat before 2.8.2 has an integer overflow in copyString.

libexpat_project CVEs Back to dashboard

0.0/ 10 priority

Sources & remediation

Patch / fix

https://github.com/libexpat/libexpat/commit/16e2efd867ea8567ffa012210b52ef5918e20817

Weakness type (CWE)

CWE-190

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

libexpat

Threat summary

2 mentions across 1 observed day

What's happening

Technical details provided in 2 signals
Disclosure: 2 classified signals
2 total mentions across 1 day

Affected systems

Vendors

libexpat_project

Products

libexpat

Deep dive

Activity timeline2 mentions / 1d

Signal classification1 categories

Disclosure

2100.0%

Referenced assets2 URLs

By indicator

Full discourse2 posts

Infoflowcloud@infoflowcloud91d
Disclosure
🚨*CVE* CVE-2026-56408 libexpat before 2.8.2 has an integer overflow in copyString. https://www.cve.org/CVERecord?id=CVE-2026-56408 ----- Traducción: CVE-2026-56408 libexpat anterior a 2.8.2 tiene un desbordamiento de enteros en copyString. https://www.cve.org/CVERecord?id=CVE-2026-56408 Fuente: `CV… http://infoflow.cloud`
Post summary
A brief announcement of CVE-2026-56408, noting an integer overflow in libexpat prior to version 2.8.2, without any mention of PoC, exploits, or mitigation.
0000033
88 followersView on X
CVE@CVEnew91d
Disclosure
CVE-2026-56408 libexpat before 2.8.2 has an integer overflow in copyString. https://www.cve.org/CVERecord?id=CVE-2026-56408
Post summary
The entry announces CVE-2026-56408, noting an integer overflow in libexpat’s copyString function, and provides a link to the official CVE record.
00000405
57.7K followersView on X

CPE platform detail1 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

1 of 1 entries

Part	Vendor	Product	Version	Target SW	Target HW
App	libexpat_project	libexpat	-	-	-

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