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10.0
CVE-2026-74764: Pandora TAR Archive Extraction Allows Malicious File Writes
CVE-2026-74764 · published 19 days ago
Summary
Pandora's TAR archive extraction feature can be exploited by submitting a specially crafted archive. This could allow an attacker to write files outside the intended directory, potentially leading to application compromise or denial of service. To fix this, Pandora's developers have implemented a filter to reject or sanitize malicious TAR members.
What to do
The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| pandora-analysis | pandora | <= 1.12.5 |
Original advisory text
Path Traversal in TAR Archive Extraction Allows Arbitrary File Write in Pandora
Pandora contains a path traversal vulnerability in its TAR archive extraction functionality. When processing a submitted TAR archive, the extractor passed archive member names directly to Python's tarfile.TarFile.extract() without applying an extraction filter.
An attacker able to submit a specially crafted TAR archive containing malicious member paths, such as paths using ../ sequences or absolute paths, could cause extracted files to be written outside the intended extraction directory. This may allow the attacker to overwrite files accessible to the Pandora worker process and could potentially result in application compromise, arbitrary code execution, or denial of service depending on the files targeted and the privileges of the Pandora process.
The vulnerability is corrected by using Python's filter='data' extraction filter, which rejects or sanitizes dangerous TAR members, including paths that escape the destination directory and unsafe link targets.
The weakness corresponds to MITRE's general path traversal category, which includes archive extraction cases where attacker-controlled filenames cause files to be written outside the intended directory.
An attacker able to submit a specially crafted TAR archive containing malicious member paths, such as paths using ../ sequences or absolute paths, could cause extracted files to be written outside the intended extraction directory. This may allow the attacker to overwrite files accessible to the Pandora worker process and could potentially result in application compromise, arbitrary code execution, or denial of service depending on the files targeted and the privileges of the Pandora process.
The vulnerability is corrected by using Python's filter='data' extraction filter, which rejects or sanitizes dangerous TAR members, including paths that escape the destination directory and unsafe link targets.
The weakness corresponds to MITRE's general path traversal category, which includes archive extraction cases where attacker-controlled filenames cause files to be written outside the intended directory.
References
Severity
10.0
Critical
CVSS 4.0: 10.0 (NVD)
CVSS 4.0: 9.9 (OSV)
Exploitation
EPSS <1%
Type
CWE-22Path Traversal
Timeline
Published15 Aug 2026
Updated3 Sep 2026
First seen15 Aug 2026
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