CVE-2026-56407

libexpat before 2.8.2 has an integer overflow in doProlog that is related to storeEntityValue and entity textLen...

UBUNTU-CVE-2026-56407

libexpat before 2.8.2 has an integer overflow in doProlog that is related to storeEntityValue and entity textLen...

CVE-2026-56407

libexpat before 2.8.2 has an integer overflow in doProlog that is related to storeEntityValue and entity textLen...

EUVD-2026-38184

libexpat before 2.8.2 has an integer overflow in doProlog that is related to storeEntityValue and entity textLen...

CVE-2026-56407

CVE-2026-56407 affects libexpat prior to 2.8.2, with an integer overflow in doProlog related to storeEntityValue and entity textLen. The NVD entries confirm the issue and describe the vulnerability as an integer overflow in doProlog. The CVE entry indicates a medium base score (CVSS 3.1: AV=L, AC...

CVE-2026-56407

libexpat before 2.8.2 has an integer overflow in doProlog that is related to storeEntityValue and entity textLen...

Astra Linux – Vulnerabilities in Firefox, Thunderbird, Expat, LibXMLTok

In doProlog, within xmlparse.c of the Expat library also known as libexpat, there is an integer overflow issue related to mgroupSize before version 2.4.3...

CVE-2026-56132

In libexpat before 2.8.2, there is a heap-based buffer overflow in doProlog in xmlparse.c because scaffold backing array reallocation is mishandled when there is data-structure sharing across parsers...

EUVD-2026-37977

In libexpat before 2.8.2, there is a heap-based buffer overflow in doProlog in xmlparse.c because scaffold backing array reallocation is mishandled when there is data-structure sharing across parsers...

CVE-2026-56132

In libexpat before 2.8.2, there is a heap-based buffer overflow in doProlog in xmlparse.c because scaffold backing array reallocation is mishandled when there is data-structure sharing across parsers...

CVE-2026-56132

CVE-2026-56132 affects libexpat prior to 2.8.2, where a heap-based buffer overflow occurs in doProlog within xmlparse.c due to mishandled reallocation of the scaffold backing array when data-structure sharing occurs across parsers. The CVSS metrics indicate a high impact on confidentiality and in...

CVE-2026-56132

In libexpat before 2.8.2, there is a heap-based buffer overflow in doProlog in xmlparse.c because scaffold backing array reallocation is mishandled when there is data-structure sharing across parsers...

Astra Linux - уязвимость в firefox, thunderbird, expat

Expat also known as libexpat before version 2.4.4 has an integer overflow in the doProlog function...

Unity Linux 20.1070e Security Update: expat (UTSA-2026-017375)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-017375 advisory. Expat aka libexpat before 2.4.4 has an integer overflow in the doProlog function. Tenable has extracted the preceding description block directly from the Unity Linux...

expat: integer overflow in the doProlog function

A flaw was found in expat. The vulnerability occurs due to large content in element type declarations when there is an element declaration handler present which leads to an integer overflow. This flaw allows an attacker to inject an unsigned integer, leading to a crash or a denial of service...

expat: Integer overflow in doProlog in xmlparse.c

expat libexpat is susceptible to a software flaw that causes process interruption. When processing a large number of prefixed XML attributes on a single tag can libexpat can terminate unexpectedly due to integer overflow. The highest threat from this vulnerability is to availability,...

expat: integer overflow in the doProlog function

A flaw was found in expat. The vulnerability occurs due to large content in element type declarations when there is an element declaration handler present which leads to an integer overflow. This flaw allows an attacker to inject an unsigned integer, leading to a crash or a denial of service...

Unity Linux 20.1050a / 20.1060a / 20.1070a Security Update: expat (UTSA-2025-991053)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-991053 advisory. Expat aka libexpat before 2.4.4 has an integer overflow in the doProlog function. Tenable has extracted the preceding description block directly from the Unity Linux...

expat: integer overflow in the doProlog function

A flaw was found in expat. The vulnerability occurs due to large content in element type declarations when there is an element declaration handler present which leads to an integer overflow. This flaw allows an attacker to inject an unsigned integer, leading to a crash or a denial of service...

expat: Integer overflow in doProlog in xmlparse.c

expat libexpat is susceptible to a software flaw that causes process interruption. When processing a large number of prefixed XML attributes on a single tag can libexpat can terminate unexpectedly due to integer overflow. The highest threat from this vulnerability is to availability,...