Pachno 1.0.6 XML Parser simplexml_load_string file descriptor

Summaryinfo

A vulnerability, which was classified as critical, has been found in Pachno 1.0.6. This affects the function simplexml_load_string of the component XML Parser. This manipulation causes file descriptor. This vulnerability is handled as CVE-2026-40042. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability classified as critical was found in Pachno 1.0.6. Affected by this vulnerability is the function simplexml_load_string of the component XML Parser. The manipulation with an unknown input leads to a file descriptor vulnerability. The CWE definition for the vulnerability is CWE-403. A process does not close sensitive file descriptors before invoking a child process, which allows the child to perform unauthorized I/O operations using those descriptors. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Pachno 1.0.6 contains an XML external entity injection vulnerability that allows unauthenticated attackers to read arbitrary files by exploiting unsafe XML parsing in the TextParser helper. Attackers can inject malicious XML entities through wiki table syntax and inline tags in issue descriptions, comments, and wiki articles to trigger entity resolution via simplexml_load_string() without LIBXML_NONET restrictions.

The weakness was released by Gjoko Krstic as ZSL-2026-5984. It is possible to read the advisory at zeroscience.mk. This vulnerability is known as CVE-2026-40042 since 04/08/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/13/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Name

• Pachno

Version

• 1.0.6

CPE 2.3info

• 🔒

CPE 2.2info

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