vulnerability / NVI-00005667 / Revision 1

Deserialization of Untrusted Data in Archive_Tar

OSV carries this publisher advisory for pear/archive_tar. This is an aggregated source copy; consult the original publisher and compare update dates.

source listedactiveGHSA-jh5x-hfhg-78jq

This report has not inspected your inventory, configuration, deployed build, reachability or evidence. A catalog listing and a severity score do not establish exposure or compromise.

01 / Meaning

Why it matters

Published affected context helps an owner decide what evidence to gather. This report has not examined your application.

02 / Applicability

The affected context

Affected versions, configuration prerequisites and known exclusions are public. Confirm each one against the deployed service.

pear/archive_tar

source listed

ECOSYSTEM: introduced 0; fixed 1.4.11

Archive_Tar through 1.4.10 allows an unserialization attack because `phar:` is blocked but `PHAR:` is not blocked. See: https://github.com/pear/Archive_Tar/issues/33

GitHub Advisory Database via OSV

03 / Response

What to do next

vendor patch
The original advisory lists fixed boundaries 1.4.11 for pear/archive_tar. Confirm the publisher’s latest guidance.
Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system. GitHub Advisory Database via OSV

A fixed release is not deployment evidence.

Check current vendor support and compatibility. After making a change, verify the deployed build and relevant runtime conditions. Keep the evidence, owner and time. An updated lockfile alone does not prove what is running.

04 / Limits

What this report cannot establish

Customer inventory, deployment, reachability and exploitation have not been inspected.

Read the collection and interpretation limits ↗

05 / Provenance

Sources you can inspect

Each assertion retains its source. Mirrored records may repeat one underlying publisher; additional links are not independent corroboration.

GHSA-jh5x-hfhg-78jq ↗
GitHub Advisory Database via OSV · vendor advisory
Observed Oct 31, 2026. GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.

Public revision history

Only published revisions appear here. Routine fetches do not create a material-change event.

Revision 1 · Oct 31, 2026
First indexed by Null; source disclosure date is shown separately.

Read the public revision data ↗