Is CVE-2026-78192 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-78192 being exploited in the wild.

How severe is CVE-2026-78192?

Informational severity, published 31 October 2026.

How is CVE-2026-78192 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-78192?

Check whether you run ASPEER WebDyne at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-78192: WebDyne source code disclosure via default index viewer

CVE-2026-78192 · Severity: info · Published 2026-10-31

WebDyne is a Perl web application framework that enables a built-in index page by default in its wrapper scripts. An unauthenticated remote attacker can read the application's source code, including sensitive Perl blocks and embedded credentials, by requesting files through the index page's source viewer feature.

Technologies: ASPEER WebDyne. Vendors: ASPEER.

Quick answers

Is CVE-2026-78192 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-78192 being exploited in the wild.
How severe is CVE-2026-78192?: Informational severity, published 31 October 2026.
Which products and versions are affected?: ASPEER WebDyne 2.022 to 3.021.
Is there a fix for CVE-2026-78192?: Yes: fixed in WebDyne 3.022. Until then: Disable the built-in index page and source viewer by not enabling DOCUMENT_DEFAULT, removing user option files that enable indexing, or explicitly disabling index handling in wrapper script configuration. Alternatively, set WEBDYNE_INDEX_SOURCE_ENABLE to false or avoid the --view-source and --index helper script options. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-78192 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-78192?: Check whether you run ASPEER WebDyne at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

Fixed in: WebDyne 3.022

Disable the built-in index page and source viewer by not enabling DOCUMENT_DEFAULT, removing user option files that enable indexing, or explicitly disabling index handling in wrapper script configuration. Alternatively, set WEBDYNE_INDEX_SOURCE_ENABLE to false or avoid the --view-source and --index helper script options.

Technical details

WebDyne's built-in index page includes a source viewer that returns files under the document root when supplied a filename parameter in an HTMX request, without authentication. The vulnerability allows reading .psp, .pm, and .pl files including embedded credentials and Perl code blocks. This affects versions 2.022 through 3.021; version 3.022 disables the index and source viewer by default and adds explicit configuration flags to re-enable them.

Affected products

ASPEER WebDyne 2.022 to 3.021

Timeline

2026-10-31: disclosed
2026-08-25: patched: Version 3.022 released with index and source viewer disabled by default

References

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