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BREW-pdfalyzer-CVE-2026-59935 — pypdf: Possible infinite loop for not terminated inline images (ASCII85 and ASCIIHex filter)

2026-10-02T23:56:07.270257+00:00

Affected: Homebrew: pdfalyzer

### Impact

An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires parsing the content stream of a page with a not terminated inline image, as done when extracting the page text for example. It only affects the ASCII85 and ASCIIHex filters.

### Patches

This has been fixed in [pypdf==6.14.2](https://github.com/py-pdf/pypdf/releases/tag/6.14.2).

### Workarounds

If you cannot upgrade yet, consider applying the changes from PR [#3892](https://github.com/py-pdf/pypdf/pull/3892).

CVE-2026-59935 — pypdf: Possible infinite loop for not terminated inline images (ASCII85 and ASCIIHex filter)

2026-10-02T23:56:07.270317+00:00

Affected: py-pdf pypdf

pypdf is a free and open-source pure-python PDF library. Prior to 6.14.2, an attacker can craft a PDF with a page content stream containing a not terminated inline image that uses the ASCII85 or ASCIIHex filters, causing an infinite loop during parsing such as when extracting page text. This issue is fixed in version 6.14.2.

GHSA-g867-7843-wf8q — pypdf: Possible infinite loop for not terminated inline images (ASCII85 and ASCIIHex filter)

2026-10-02T23:56:07.270348+00:00

Affected: PyPI: pypdf

### Impact

### Patches

This has been fixed in [pypdf==6.14.2](https://github.com/py-pdf/pypdf/releases/tag/6.14.2).

### Workarounds

If you cannot upgrade yet, consider applying the changes from PR [#3892](https://github.com/py-pdf/pypdf/pull/3892).