Total
53 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2026-84309 | 1 Pypdf Project | 1 Pypdf | 2026-10-05 | N/A | 5.5 MEDIUM |
| pypdf is a free and open-source pure-python PDF library. Prior to 6.16.0, an attacker can craft a PDF whose cyclic tree structure causes pypdf/generic/_data_structures.py TreeObject.insert_child to follow /Next links indefinitely when a writing code path inserts a child, producing an infinite loop. This issue is fixed in version 6.16.0. | |||||
| CVE-2026-82398 | 1 Pypdf Project | 1 Pypdf | 2026-10-05 | N/A | 5.3 MEDIUM |
| pypdf is a free and open-source pure-python PDF library. Prior to 6.15.0, an attacker can craft a PDF that causes long runtimes when the pypdf/_utils.py function read_until_whitespace reads a stream containing a long run of bytes without whitespace. The function repeatedly performs immutable bytes concatenation in a one-byte loop, causing quadratic processing cost for the long non-whitespace input. This issue is fixed in version 6.15.0. | |||||
| CVE-2026-102994 | 1 Pypdf Project | 1 Pypdf | 2026-10-05 | N/A | 7.5 HIGH |
| pypdf is a free and open-source pure-python PDF library. Prior to 6.18.0, a crafted PDF containing indirect-object identifiers or generation-number tokens that continue for a long time without whitespace can cause pypdf/_reader.py and pypdf/generic/_base.py to scan excessive input through read_until_whitespace, resulting in long runtimes and application unavailability. This issue is fixed in version 6.18.0. | |||||
| CVE-2026-102995 | 1 Pypdf Project | 1 Pypdf | 2026-10-05 | N/A | 7.5 HIGH |
| pypdf is a free and open-source pure-python PDF library. Prior to 6.18.1, a crafted PDF can place unusually large source-code or destination-string tokens in a font /ToUnicode mapping, causing pypdf/_cmap.py parse_bfchar to decode and retain oversized values during operations such as text extraction and consume excessive memory. This is a second follow-up to earlier /ToUnicode resource-consumption fixes and is limited to the remaining token-length path. This issue is fixed in version 6.18.1. | |||||
| CVE-2026-102996 | 1 Pypdf Project | 1 Pypdf | 2026-10-05 | N/A | 7.5 HIGH |
| pypdf is a free and open-source pure-python PDF library. Prior to 6.18.1, a crafted PDF can provide a TrueType or Type1 simple font with an unusually large /Widths array, causing pypdf/_font.py Font._collect_tt_t1_character_widths to process entries beyond the 256 character codes meaningful for a simple font and consume excessive memory during operations such as text extraction. This issue is fixed in version 6.18.1. | |||||
| CVE-2026-102997 | 1 Pypdf Project | 1 Pypdf | 2026-10-05 | N/A | 7.5 HIGH |
| pypdf is a free and open-source pure-python PDF library. Prior to 6.18.1, a crafted PDF containing a partially malformed /FlateDecode stream with padded data can force pypdf/filters.py to use inefficient byte-by-byte decompression while the earlier recovery counter fails to advance for bytes that successfully decode, causing long runtimes and application unavailability. This is a residual issue after the malformed FlateDecode recovery fix. This issue is fixed in version 6.18.1. | |||||
| CVE-2026-102998 | 1 Pypdf Project | 1 Pypdf | 2026-10-05 | N/A | 7.5 HIGH |
| pypdf is a free and open-source pure-python PDF library. Prior to 6.19.0, a crafted PDF with form field values can cause pypdf/generic/_appearance_stream.py appearance-stream generation to repeat invariant selection-data work inside a loop when an application updates fields with flattening enabled, resulting in excessive runtimes and application unavailability. This issue is fixed in version 6.19.0. | |||||
| CVE-2026-102999 | 1 Pypdf Project | 1 Pypdf | 2026-10-05 | N/A | 7.5 HIGH |
| pypdf is a free and open-source pure-python PDF library. Prior to 6.19.0, a crafted PDF containing many embedded files can cause the dictionary-based attachments API in pypdf/_doc_common.py to reparse the full attachment list for each content lookup, producing repeated work and long runtimes when an application accesses the embedded-file mapping. This issue is fixed in version 6.19.0. | |||||
| CVE-2026-103000 | 1 Pypdf Project | 1 Pypdf | 2026-10-05 | N/A | 7.5 HIGH |
| pypdf is a free and open-source pure-python PDF library. Prior to 6.19.0, a crafted PDF can provide unusually large alphabetical page-label values that cause pypdf/_page_labels.py to generate strings beyond a reasonable page-label length when an application retrieves document page labels, consuming excessive memory and potentially making the application unavailable. This issue is fixed in version 6.19.0. | |||||
| CVE-2026-102993 | 1 Pypdf Project | 1 Pypdf | 2026-10-02 | N/A | 7.5 HIGH |
| pypdf is a free and open-source pure-python PDF library. Prior to 6.17.0, a crafted PDF can provide unusually large Roman page-label values that cause pypdf/_page_labels.py to generate excessively large numeral strings when an application retrieves document page labels, consuming large amounts of memory and potentially making the application unavailable. This issue is fixed in version 6.17.0. | |||||
| CVE-2026-41314 | 1 Pypdf Project | 1 Pypdf | 2026-06-17 | N/A | 6.5 MEDIUM |
| pypdf is a free and open-source pure-python PDF library. An attacker who uses a vulnerability present in versions prior to 6.10.2 can craft a PDF which leads to the RAM being exhausted. This requires accessing an image using `/FlateDecode` with large size values. This has been fixed in pypdf 6.10.2. As a workaround, one may apply the changes from the patch manually. | |||||
| CVE-2026-41313 | 1 Pypdf Project | 1 Pypdf | 2026-06-17 | N/A | 6.5 MEDIUM |
| pypdf is a free and open-source pure-python PDF library. An attacker who uses a vulnerability present in versions prior to 6.10.2 can craft a PDF which leads to long runtimes. This requires loading a PDF with a large trailer `/Size` value in incremental mode. This has been fixed in pypdf 6.10.2. As a workaround, one may apply the changes from the patch manually. | |||||
| CVE-2026-41312 | 1 Pypdf Project | 1 Pypdf | 2026-06-17 | N/A | 6.5 MEDIUM |
| pypdf is a free and open-source pure-python PDF library. An attacker who uses a vulnerability present in versions prior to 6.10.2 can craft a PDF which leads to the RAM being exhausted. This requires accessing a stream compressed using `/FlateDecode` with a `/Predictor` unequal 1 and large predictor parameters. This has been fixed in pypdf 6.10.2. As a workaround, one may apply the changes from the patch manually. | |||||
| CVE-2026-41168 | 1 Pypdf Project | 1 Pypdf | 2026-06-17 | N/A | 5.3 MEDIUM |
| pypdf is a free and open-source pure-python PDF library. An attacker who uses a vulnerability present in versions prior to 6.10.1 can craft a PDF which leads to long runtimes. This requires cross-reference streams with wrong large `/Size` values or object streams with wrong large `/N` values. This has been fixed in pypdf 6.10.1. As a workaround, one may apply the changes from the patch manually. | |||||
| CVE-2026-40260 | 1 Pypdf Project | 1 Pypdf | 2026-06-17 | N/A | 5.3 MEDIUM |
| pypdf is a free and open-source pure-python PDF library. In versions prior to 6.10.0, manipulated XMP metadata entity declarations can exhaust RAM. An attacker who exploits this vulnerability can craft a PDF which leads to large memory usage. This requires parsing the XMP metadata. This issue has been fixed in version 6.10.0. | |||||
| CVE-2026-33699 | 1 Pypdf Project | 1 Pypdf | 2026-06-17 | N/A | 7.5 HIGH |
| pypdf is a free and open-source pure-python PDF library. Versions prior to 6.9.2 have a vulnerability in which an attacker can craft a PDF which leads to an infinite loop. This requires reading a file in non-strict mode. This has been fixed in pypdf 6.9.2. If users cannot upgrade yet, consider applying the changes from the patch manually. | |||||
| CVE-2026-33123 | 1 Pypdf Project | 1 Pypdf | 2026-06-17 | N/A | 6.5 MEDIUM |
| pypdf is a free and open-source pure-python PDF library. Versions prior to 6.9.1 allow an attacker to craft a malicious PDF which leads to long runtimes and/or large memory usage. Exploitation requires accessing an array-based stream with many entries. This issue has been fixed in version 6.9.1. | |||||
| CVE-2026-31826 | 1 Pypdf Project | 1 Pypdf | 2026-06-17 | N/A | 5.5 MEDIUM |
| pypdf is a free and open-source pure-python PDF library. Prior to 6.8.0, an attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires parsing a content stream with a rather large /Length value, regardless of the actual data length inside the stream. This vulnerability is fixed in 6.8.0. | |||||
| CVE-2026-28804 | 1 Pypdf Project | 1 Pypdf | 2026-06-17 | N/A | 5.3 MEDIUM |
| pypdf is a free and open-source pure-python PDF library. Prior to version 6.7.5, an attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires accessing a stream which uses the /ASCIIHexDecode filter. This issue has been patched in version 6.7.5. | |||||
| CVE-2026-28351 | 1 Pypdf Project | 1 Pypdf | 2026-06-17 | N/A | 5.3 MEDIUM |
| pypdf is a free and open-source pure-python PDF library. Prior to version 6.7.4, an attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires parsing the content stream using the RunLengthDecode filter. This has been fixed in pypdf 6.7.4. As a workaround, consider applying the changes from PR #3664. | |||||