CVE-2026-104874

The Multidict library (versions 6.7.0 through 6.9.1 ) contains a memory leak vulnerability within its C extension . Specifically, the multidict_itemsview_or2_impl and multidict_itemsview_sub1_impl functions fail to release new key-identity and value references during reflected union (operand | d....

CVE-2026-104874

Multidict is an implementation of a multidict data structure. From 6.7.0 until 6.9.1, the C extension's items-view reflected union operation, operand | d.items, in multidictitemsviewor2impl and subtraction operation, d.items - operand, in multidictitemsviewsub1impl fail to release new key-identit...

MGASA-2026-0467 Updated python-tornado packages fix security vulnerabilities

Tornado: Authorization header forwarded across cross-origin redirects in SimpleAsyncHTTPClient Tornado has out-of-bounds memory access via C extension tornado AsyncHTTPClient accumulates decompressed chunks without size limit gzip bomb...

PT-2026-104441

Name of the Vulnerable Software and Affected Versions Multidict versions 6.7.0 through 6.9.0 Description A reference leak exists in the C extension of the multidict data structure. The issue occurs during the items-view reflected union operation, operand | d.items, within the multidict itemsview...

CVE-2026-104874: Missing Release of Memory after Effective Lifetime

Multidict is an implementation of a multidict data structure. From 6.7.0 until 6.9.1, the C extension's items-view reflected union operation, operand | d.items, in multidictitemsviewor2impl and subtraction operation, d.items - operand, in multidictitemsviewsub1impl fail to release new key-identit...

Use After Free

Overview json is a JSON implementation as a Ruby extension in C. Affected versions of this package are vulnerable to Use After Free through JSON::ResumableParserpartialvalue in ext/json/ext/parser/parser.c. An attacker can crash the Ruby process by supplying truncated streaming JSON with duplicat...

Thumbor convolution filter allows divide-by-zero in C extension leading to remote DoS

SummaryThumbor's filters:convolution, , filter passes the user-controlled value to a C extension thumbor/ext/filters/convolution.c where it is used as a divisor for % and / without validating columns 0. When columns=0, the C code triggers undefined behavior; on x8664 this reliably results in a...

PYSEC-2026-3619 Thumbor convolution filter allows divide-by-zero in C extension leading to remote DoS

Summary Thumbor's filters:convolution, , filter passes the user-controlled value to a C extension thumbor/ext/filters/convolution.c where it is used as a divisor for % and / without validating columns 0. When columns=0, the C code triggers undefined behavior; on x8664 this reliably results in a...

CVE-2026-53503

Thumbor is an open-source photo thumbnail service by globo.com. Prior to 7.8.0, Thumbor's filters:convolution, , filter passes the user-controlled value to a C extension thumbor/ext/filters/convolution.c where it is used as a divisor for % and / without validating columns 0. When columns=0, the C...

GHSA-CQJP-JF4R-H5Q9 Thumbor convolution filter allows divide-by-zero in C extension leading to remote DoS

Summary Thumbor's filters:convolution, , filter passes the user-controlled value to a C extension thumbor/ext/filters/convolution.c where it is used as a divisor for % and / without validating columns 0. When columns=0, the C code triggers undefined behavior; on x8664 this reliably results in a...

Thumbor convolution filter allows divide-by-zero in C extension leading to remote DoS

Summary Thumbor's filters:convolution, , filter passes the user-controlled value to a C extension thumbor/ext/filters/convolution.c where it is used as a divisor for % and / without validating columns 0. When columns=0, the C code triggers undefined behavior; on x8664 this reliably results in a...

CVE-2026-53503

Thumbor CVE-2026-53503 documents a vulnerability in the filters:convolution filter prior to 7.8.0 where the user-supplied columns value is passed to a C extension (thumbor/ext/filters/_convolution.c) as a divisor without validating that columns > 0. If columns is 0, the C code triggers undefin...

CVE-2026-53503 Thumbor convolution filter allows divide-by-zero in C extension leading to remote DoS

Thumbor is an open-source photo thumbnail service by globo.com. Prior to 7.8.0, Thumbor's filters:convolution, , filter passes the user-controlled value to a C extension thumbor/ext/filters/convolution.c where it is used as a divisor for % and / without validating columns 0. When columns=0, the C...

CVE-2026-53503 Thumbor convolution filter allows divide-by-zero in C extension leading to remote DoS

Thumbor is an open-source photo thumbnail service by globo.com. Prior to 7.8.0, Thumbor's filters:convolution, , filter passes the user-controlled value to a C extension thumbor/ext/filters/convolution.c where it is used as a divisor for % and / without validating columns 0. When columns=0, the C...

GHSA-9HW9-CH79-4VH6 Pillow: Controlled heap out-of-bounds write in Pillow `ImageCmsTransform.apply()` via output mode mismatch

Summary Pillow's public ImageCms.ImageCmsTransform.applyim, imOut API can trigger controlled native heap corruption when the caller supplies an output image whose mode does not match the transform's declared output mode. For example, a transform built as RGBA - RGBA can be applied to an L output...

CVE-2026-49854 Tornado: Out-of-bounds memory access in C extension

Tornado is a Python web framework and asynchronous networking library. Prior to 6.5.6, the optional native extension tornado.speedups implemented websocketmask without validating that the mask argument is exactly four bytes, allowing the C function to read up to three bytes beyond the provided...

PYSEC-2026-3388 Tornado has out-of-bounds memory access via C extension

Summary Tornado's optional native extension tornado.speedups implements websocketmask without validating that the mask argument is exactly four bytes long. The C function reads four bytes from mask unconditionally, even when Python passes a shorter byte string. This can read beyond the provided...

Security update for python-tornado

This update for python-tornado fixes the following issues CVE-2026-49853: authorization header forwarded across cross-origin redirects in SimpleAsyncHTTPClient bsc1268395. CVE-2026-49854: out-of-bounds memory access via C extension bsc1268396. CVE-2026-49855: AsyncHTTPClient accumulates...

SUSE-SU-2026:22373-1 Security update for python-tornado6

This update for python-tornado6 fixes the following issues - CVE-2026-49853: authorization header forwarded across cross-origin redirects in SimpleAsyncHTTPClient bsc1268395. - CVE-2026-49854: out-of-bounds memory access via C extension bsc1268396. - CVE-2026-49855: AsyncHTTPClient accumulates...

Oj: Use-After-Free in Oj::Doc Iterators via Reentrant Close

Summary Oj::Doc iterators eachvalue, eachchild, eachleaf are vulnerable to a heap use-after-free. When a Ruby block yielded during iteration calls doc.close or d.close, the document's heap memory is freed while the C iterator is still running. When control returns from the block, the iterator rea...