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Advisory record · GHSA-xg43-5579-qw6v

adawolfa/isdoc: Uncontrolled resource consumption (decompression bomb) when reading untrusted ISDOCX or PDF files

CVSS 6.5 Medium

Published by the GitHub Advisory Database at 15 Jul 2026, 23:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
adawolfa/isdocPackagist>=1.6.0, <1.6.1 || >=1.5.0, <1.5.1 || >=1.4.0, <1.4.3 || all versions1.6.1, 1.5.1, 1.4.3
Identifiers
GHSA-xg43-5579-qw6v · PKSA-zwm1-4dcx-xx1p
Weakness (CWE)
CWE-400 · CWE-409
Tags
Published
15 Jul 2026
Updated
10 Sept 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

The adawolfa/isdoc Packagist package is vulnerable to uncontrolled resource consumption when reading ISDOCX or PDF files, in all versions below 1.4.0 and in 1.4.0 through 1.4.2, 1.5.0, and 1.6.0. An attacker who gets the application to parse a small crafted file can inflate it into gigabytes, exhausting memory or disk and causing denial of service, with no confidentiality or integrity impact. Upgrade to 1.4.3, 1.5.1, 1.6.1, or 2.0.0; versions before 1.4.0 will not receive a fix.

Written 31 Oct 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
6.5 Medium 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H GitHub Advisory Database
  • CISA KEV Not listed.
  • EPSS No score.

Timeline

  1. 31 Oct 2026, 13:57 UTC First seen by agentprime
  2. 31 Oct 2026, 13:57 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.