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Search Results (346603 CVEs found)

CVE Vendors Products Updated CVSS v3.1
CVE-2026-41168 1 Pypdf Project 1 Pypdf 2026-04-24 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-2026-34610 2 Leancrypto, Smuellerdd 2 Leancrypto, Leancrypto 2026-04-24 5.9 Medium
The leancrypto library is a cryptographic library that exclusively contains only PQC-resistant cryptographic algorithms. Prior to version 1.7.1, lc_x509_extract_name_segment() casts size_t vlen to uint8_t when storing the Common Name (CN) length. An attacker who crafts a certificate with CN = victim's CN + 256 bytes padding gets cn_size = (uint8_t)(256 + N) = N, where N is the victim's CN length. The first N bytes of the attacker's CN are the victim's identity. After parsing, the attacker's certificate has an identical CN to the victim's — enabling identity impersonation in PKCS#7 verification, certificate chain matching, and code signing. This issue has been patched in version 1.7.1.
CVE-2018-19756 1 Saitoha 1 Libsixel 2026-04-24 N/A
There is a heap-based buffer over-read at stb_image.h (function: stbi__tga_load) in libsixel 1.8.2 that will cause a denial of service.
CVE-2019-20022 1 Saitoha 1 Libsixel 2026-04-24 6.5 Medium
An invalid memory address dereference was discovered in load_pnm in frompnm.c in libsixel before 1.8.3.
CVE-2019-20140 1 Saitoha 1 Libsixel 2026-04-24 8.8 High
An issue was discovered in libsixel 1.8.4. There is a heap-based buffer overflow in the function gif_out_code at fromgif.c.
CVE-2019-20205 1 Saitoha 1 Libsixel 2026-04-24 8.8 High
libsixel 1.8.4 has an integer overflow in sixel_frame_resize in frame.c.
CVE-2020-11721 1 Saitoha 1 Libsixel 2026-04-24 6.5 Medium
load_png in loader.c in libsixel.a in libsixel 1.8.6 has an uninitialized pointer leading to an invalid call to free, which can cause a denial of service.
CVE-2020-19668 1 Saitoha 1 Libsixel 2026-04-24 6.5 Medium
Unverified indexs into the array lead to out of bound access in the gif_out_code function in fromgif.c in libsixel 1.8.6.
CVE-2020-21048 1 Saitoha 1 Libsixel 2026-04-24 6.5 Medium
An issue in the dither.c component of libsixel prior to v1.8.4 allows attackers to cause a denial of service (DOS) via a crafted PNG file.
CVE-2021-46700 1 Saitoha 1 Libsixel 2026-04-24 6.5 Medium
In libsixel 1.8.6, sixel_encoder_output_without_macro (called from sixel_encoder_encode_frame in encoder.c) has a double free.
CVE-2022-27046 1 Saitoha 1 Libsixel 2026-04-24 8.8 High
libsixel 1.8.6 suffers from a Heap Use After Free vulnerability in in libsixel/src/dither.c:388.
CVE-2022-27044 1 Saitoha 1 Libsixel 2026-04-24 8.8 High
libsixel 1.8.6 is affected by Buffer Overflow in libsixel/src/quant.c:876.
CVE-2018-14073 1 Saitoha 1 Libsixel 2026-04-24 N/A
libsixel 1.8.1 has a memory leak in sixel_allocator_new in allocator.c.
CVE-2018-19759 1 Saitoha 1 Libsixel 2026-04-24 N/A
There is a heap-based buffer over-read at stb_image_write.h (function: stbi_write_png_to_mem) in libsixel 1.8.2 that will cause a denial of service.
CVE-2018-19761 1 Saitoha 1 Libsixel 2026-04-24 N/A
There is an illegal address access at fromsixel.c (function: sixel_decode_raw_impl) in libsixel 1.8.2 that will cause a denial of service.
CVE-2018-19762 1 Saitoha 1 Libsixel 2026-04-24 N/A
There is a heap-based buffer overflow at fromsixel.c (function: image_buffer_resize) in libsixel 1.8.2 that will cause a denial of service or possibly unspecified other impact.
CVE-2018-19763 1 Saitoha 1 Libsixel 2026-04-24 N/A
There is a heap-based buffer over-read at writer.c (function: write_png_to_file) in libsixel 1.8.2 that will cause a denial of service.
CVE-2019-11024 1 Saitoha 1 Libsixel 2026-04-24 N/A
The load_pnm function in frompnm.c in libsixel.a in libsixel 1.8.2 has infinite recursion.
CVE-2019-19635 1 Saitoha 1 Libsixel 2026-04-24 9.8 Critical
An issue was discovered in libsixel 1.8.2. There is a heap-based buffer overflow in the function sixel_decode_raw_impl at fromsixel.c.
CVE-2019-19636 1 Saitoha 1 Libsixel 2026-04-24 9.8 Critical
An issue was discovered in libsixel 1.8.2. There is an integer overflow in the function sixel_encode_body at tosixel.c.