_read_tar() reads each entry's payload with $handle->read($$data, $block), where $block is derived from the entry's 12-byte size field in the tar header with no upper bound on that value.
A crafted header declaring a multi-gigabyte size causes Perl to allocate a scalar of that size.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| BINGOS | Archive::Tar | unaffected |
|
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Solution
Upgrade to Archive::Tar 3.10 or later.
Workaround
No workaround given by the vendor.
Tue, 26 May 2026 01:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Archive::Tar versions before 3.10 for Perl allow memory exhaustion via attacker controlled entry size field in tar header. _read_tar() reads each entry's payload with $handle->read($$data, $block), where $block is derived from the entry's 12-byte size field in the tar header with no upper bound on that value. A crafted header declaring a multi-gigabyte size causes Perl to allocate a scalar of that size. | |
| Title | Archive::Tar versions before 3.10 for Perl allow memory exhaustion via attacker controlled entry size field in tar header | |
| Weaknesses | CWE-789 | |
| References |
|
Projects
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MITRE
Status: PUBLISHED
Assigner: CPANSec
Published:
Updated: 2026-05-26T00:18:43.704Z
Reserved: 2026-05-25T23:04:04.116Z
Link: CVE-2026-9538
Vulnrichment
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NVD
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Redhat
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OpenCVE Enrichment
Updated: 2026-05-26T02:30:26Z