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2026-04-07[4.2.x] Fixed CVE-2026-33034 -- Enforced DATA_UPLOAD_MAX_MEMORY_SIZE on body ↵Natalia
size in ASGI requests. The `body` property in `HttpRequest` checks DATA_UPLOAD_MAX_MEMORY_SIZE against the declared `Content-Length` header before reading. On the ASGI path, chunked requests carry no `Content-Length`, so the check evaluated to 0 and always passed regardless of the actual body size. This work adds a new check on the actual number of bytes consumed. Thanks to Superior for the report, and to Jake Howard and Jacob Walls for reviews. Backport of 953c238058c0ce387a1a41cb491bfc1875d73ad0 from main.
2026-04-07[4.2.x] Fixed CVE-2026-33033 -- Mitigated potential DoS in MultiPartParser.Natalia
When a multipart file part used `Content-Transfer-Encoding: base64` and the non-whitespace base64 bytes did not align to a multiple of 4 within a chunk, the parser entered a loop calling `field_stream.read(1-3)` once per whitespace byte. Each such call fetched the entire internal buffer, sliced off 1-3 bytes, and pushed the remainder back via unget(), doing an O(n) memory copy per call. A 2.5 MB payload of mostly whitespace produced CPU amplification relative to a normal upload of the same size. The alignment loop now reads `self._chunk_size` bytes at a time, and accumulates stripped parts in a list joined once at the end. Thanks to Seokchan Yoon for the report and the fixing patch. Backport of 7e9885f99cee771b51692fadc5592bdbf19641aa from main.
2026-04-07[4.2.x] Fixed CVE-2026-4292 -- Disallowed instance creation via ↵Jacob Walls
ModelAdmin.list_editable. Thanks Natalia Bidart, Jake Howard, and Markus Holtermann for reviews. Backport of 6afe7ce93964f56e33a29d477c269436f9b60cbf from main.
2026-04-07[4.2.x] Fixed CVE-2026-4277 -- Checked add permissions in ↵Jacob Walls
GenericInlineModelAdmin. Edit permissions were still checked as part of ordinary form validation, but because GenericInlineModelAdmin overrides get_formset(), it lacked InlineModelAdmin's dynamic DeleteProtectedModelForm.has_changed() logic for checking permissions server-side, leaving the add case unaddressed. This change reimplements the relevant part of InlineModelAdmin.get_formset(). Thanks N05ec@LZU-DSLab for the report, and Natalia Bidart, Markus Holtermann, and Simon Charette for reviews. Backport of ef8b25dcc06d158683a5623ce406d561638f4073 from main.
2026-04-07[4.2.x] Fixed CVE-2026-3902 -- Ignored headers with underscores in ASGIRequest.Jacob Walls
Thanks Tarek Nakkouch for the report and Jake Howard and Natalia Bidart for reviews. Backport of caf90a971f09323775ed0cacf94eadaf39d040e0 from main.
2026-03-31[4.2.x] Added stub release notes and release date for 4.2.30.Jacob Walls
Backport of dff1980d61b1129c82757f70117dcea68e69a8c8 from main.
2026-03-03[4.2.x] Added CVE-2026-25673 and CVE-2026-25674 to security archive.Natalia
Backport of 62ab467686845e2a12a2580997a81d4bf61edfc6 from main.
2026-03-03[4.2.x] Fixed CVE-2026-25674 -- Prevented potentially incorrect permissions ↵Natalia
on file system object creation. This fix introduces `safe_makedirs()` in the `os` utils as a safer alternative to `os.makedirs()` that avoids umask-related race conditions in multi-threaded environments. This is a workaround for https://github.com/python/cpython/issues/86533 and the solution is based on the fix being proposed for CPython. Co-authored-by: Gregory P. Smith <68491+gpshead@users.noreply.github.com> Co-authored-by: Zackery Spytz <zspytz@gmail.com> Refs CVE-2020-24583 and #31921. Thanks Tarek Nakkouch for the report, and Jake Howard, Jacob Walls, and Shai Berger for reviews. Backport of 019e44f67a8dace67b786e2818938c8691132988 from main.
2026-03-03[4.2.x] Fixed CVE-2026-25673 -- Simplified URLField scheme detection.Natalia
This simplicaftion mitigates a potential DoS in URLField on Windows. The usage of `urlsplit()` in `URLField.to_python()` was replaced with `str.partition(":")` for URL scheme detection. On Windows, `urlsplit()` performs Unicode normalization which is slow for certain characters, making `URLField` vulnerable to DoS via specially crafted POST payloads. Thanks Seokchan Yoon for the report, and Jake Howard and Shai Berger for the review. Refs #36923. Co-authored-by: Jacob Walls <jacobtylerwalls@gmail.com> Backport of 951ffb3832cd83ba672c1e3deae2bda128eb9cca from main.
2026-02-24[4.2.x] Added stub release notes and release date for 4.2.29.Natalia
Backport of acd0bec51366e259b4c2b43e4c09755541cdf560 from main.
2026-02-03[4.2.x] Added CVE-2025-13473, CVE-2025-14550, CVE-2026-1207, CVE-2026-1285, ↵Jacob Walls
CVE-2026-1287, and CVE-2026-1312 to security archive. Backport of af361d3be4725b9da1022c078b2db02b9d9b96e7 from main.
2026-02-03[4.2.x] Fixed CVE-2026-1312 -- Protected order_by() from SQL injection via ↵Jacob Walls
aliases with periods. Before, `order_by()` treated a period in a field name as a sign that it was requested via `.extra(order_by=...)` and thus should be passed through as raw table and column names, even if `extra()` was not used. Since periods are permitted in aliases, this meant user-controlled aliases could force the `order_by()` clause to resolve to a raw table and column pair instead of the actual target field for the alias. In practice, only `FilteredRelation` was affected, as the other expressions we tested, e.g. `F`, aggressively optimize away the ordering expressions into ordinal positions, e.g. ORDER BY 2, instead of ORDER BY "table".column. Thanks Solomon Kebede for the report, and Simon Charette and Jake Howard for reviews. Backport of 69065ca869b0970dff8fdd8fafb390bf8b3bf222 from main.
2026-02-03[4.2.x] Fixed CVE-2026-1287 -- Protected against SQL injection in column ↵Jake Howard
aliases via control characters. Control characters in FilteredRelation column aliases could be used for SQL injection attacks. This affected QuerySet.annotate(), aggregate(), extra(), values(), values_list(), and alias() when using dictionary expansion with **kwargs. Thanks Solomon Kebede for the report, and Simon Charette, Jacob Walls, and Natalia Bidart for reviews. Backport of e891a84c7ef9962bfcc3b4685690219542f86a22 from main.
2026-02-03[4.2.x] Fixed CVE-2026-1285 -- Mitigated potential DoS in ↵Natalia
django.utils.text.Truncator for HTML input. The `TruncateHTMLParser` used `deque.remove()` to remove tags from the stack when processing end tags. With crafted input containing many unmatched end tags, this caused repeated full scans of the tag stack, leading to quadratic time complexity. The fix uses LIFO semantics, only removing a tag from the stack when it matches the most recently opened tag. This avoids linear scans for unmatched end tags and reduces complexity to linear time. Refs #30686 and 6ee37ada3241ed263d8d1c2901b030d964cbd161. Thanks Seokchan Yoon for the report. Backport of a33540b3e20b5d759aa8b2e4b9ca0e8edd285344 from main.
2026-02-03[4.2.x] Fixed CVE-2026-1207 -- Prevented SQL injections in RasterField ↵Jacob Walls
lookups via band index. Thanks Tarek Nakkouch for the report, and Simon Charette for the initial triage and review. Backport of 81aa5292967cd09319c45fe2c1a525ce7b6684d8 from main.
2026-02-03[4.2.x] Fixed CVE-2025-14550 -- Optimized repeated header parsing in ASGI ↵Jake Howard
requests. Thanks Jiyong Yang for the report, and Natalia Bidart, Jacob Walls, and Shai Berger for reviews. Backport of eb22e1d6d643360e952609ef562c139a100ea4eb from main.
2026-02-03[4.2.x] Fixed CVE-2025-13473 -- Standardized timing of check_password() in ↵Jake Howard
mod_wsgi auth handler. Refs CVE-2024-39329, #20760. Thanks Stackered for the report, and Jacob Walls and Markus Holtermann for the reviews. Co-authored-by: Natalia <124304+nessita@users.noreply.github.com> Backport of 3eb814e02a4c336866d4189fa0c24fd1875863ed from main.
2026-01-27[4.2.x] Added stub release notes and release date for 4.2.28.Jacob Walls
Backport of b30e09a94270fdaa4bf282bf442b758c9a6d0bb0 from main.
2025-12-02[4.2.x] Added CVE-2025-13372 and CVE-2025-64460 to security archive.Natalia
Backport of d0d596042e958809a13b681d7a184ac7b95e0aa3 from main.
2025-12-02[4.2.x] Fixed CVE-2025-64460 -- Corrected quadratic inner text accumulation ↵Shai Berger
in XML serializer. Previously, `getInnerText()` recursively used `list.extend()` on strings, which added each character from child nodes as a separate list element. On deeply nested XML content, this caused the overall deserialization work to grow quadratically with input size, potentially allowing disproportionate CPU consumption for crafted XML. The fix separates collection of inner texts from joining them, so that each subtree is joined only once, reducing the complexity to linear in the size of the input. These changes also include a mitigation for a xml.dom.minidom performance issue. Thanks Seokchan Yoon (https://ch4n3.kr/) for report. Co-authored-by: Jacob Walls <jacobtylerwalls@gmail.com> Co-authored-by: Natalia <124304+nessita@users.noreply.github.com> Backport of 50efb718b31333051bc2dcb06911b8fa1358c98c from main.
2025-12-02[4.2.x] Fixed CVE-2025-13372 -- Protected FilteredRelation against SQL ↵Jacob Walls
injection in column aliases on PostgreSQL. Follow-up to CVE-2025-57833. Thanks Stackered for the report, and Simon Charette and Mariusz Felisiak for the reviews. Backport of 5b90ca1e7591fa36fccf2d6dad67cf1477e6293e from main.
2025-11-26[4.2.x] Refs #36743 -- Added missing release notes for 5.1.15 and 4.2.27.Natalia
The fix landed in a8cf8c292cfee98fe6cc873ca5221935f1d02271 will be backported to 5.1 and 4.2 since the 2048 limit was rolled out as part of the security release for CVE-2025-64458. Backport of 18b13cf6c48ff0a20b2a74d3b90d1fc1602608e4 from main.
2025-11-25[4.2.x] Added stub release notes and release date for 4.2.27.Natalia
Backport of d62e811acfc6a056e847bfcc460092a98511ed00 from main.
2025-11-21[4.2.x] Added GitHub Actions linter (zizmor).Jacob Walls
At the direction of the Security Team. Thanks Markus Holtermann, Jake Howard, and Natalia Bidart for reviews. Backport of 09d4bf5cd9c95c588d3ec22edea5db1f5f146900 from main.
2025-11-05[4.2.x] Added CVE-2025-64458 and CVE-2025-64459 to security archive.Natalia
Backport of c5a107e8248813f07325ae65232b5e53e9ac4238 from main.
2025-11-05[4.2.x] Fixed CVE-2025-64459 -- Prevented SQL injections in Q/QuerySet via ↵Jacob Walls
the _connector kwarg. Thanks cyberstan for the report, Sarah Boyce, Adam Johnson, Simon Charette, and Jake Howard for the reviews. Backport of c880530ddd4fabd5939bab0e148bebe36699432a from main.
2025-11-05[4.2.x] Fixed CVE-2025-64458 -- Mitigated potential DoS in ↵Jacob Walls
HttpResponseRedirect/HttpResponsePermanentRedirect on Windows. Thanks Seokchan Yoon for the report, Markus Holtermann for the triage, and Jake Howard for the review. Backport of c880530ddd4fabd5939bab0e148bebe36699432a from main.
2025-10-29[4.2.x] Added stub release notes and release date for 4.2.26.Jacob Walls
Backport of ab108bf94dfc06c311d7dc81866b848fe5b5ee6c from main.
2025-10-01[4.2.x] Rewrapped security archive at 79 chars.Mariusz Felisiak
Backport of 1499c95d990fb776c39ad60e43228cbbbfcad3a8 from main.
2025-10-01[4.2.x] Added CVE-2025-59681 and CVE-2025-59682 to security archive.Jacob Walls
Backport of 43d84aef04a9e71164c21a74885996981857e66e from main.
2025-10-01[4.2.x] Fixed CVE-2025-59682 -- Fixed potential partial directory-traversal ↵Sarah Boyce
via archive.extract(). Thanks stackered for the report. Follow up to 05413afa8c18cdb978fcdf470e09f7a12b234a23. Backport of 924a0c092e65fa2d0953fd1855d2dc8786d94de2 from main.
2025-10-01[4.2.x] Fixed CVE-2025-59681 -- Protected QuerySet.annotate(), alias(), ↵Mariusz Felisiak
aggregate(), and extra() against SQL injection in column aliases on MySQL/MariaDB. Thanks sw0rd1ight for the report. Follow up to 93cae5cb2f9a4ef1514cf1a41f714fef08005200. Backport of 41b43c74bda19753c757036673ea9db74acf494a from main.
2025-09-24[4.2.x] Added stub release notes and release date for 4.2.25.Mariusz Felisiak
Backport of 00174507f8a91e9577ae233c58af561b379f2695 from main.
2025-09-04[4.2.x] Added missing backticks in docs/releases/security.txt.Mariusz Felisiak
Backport of 686a8a62ae7faba9c3b17080c3532b821e8cb1f3 from main
2025-09-03[4.2.x] Added CVE-2025-57833 to security archive.Sarah Boyce
Backport of f0c05a40d27d69ef3a7b4e5e0199b5dba5b11feb from main.
2025-09-03[4.2.x] Fixed CVE-2025-57833 -- Protected FilteredRelation against SQL ↵Jake Howard
injection in column aliases. Thanks Eyal Gabay (EyalSec) for the report. Backport of 51711717098d3f469f795dfa6bc3758b24f69ef7 from main.
2025-08-27[4.2.x] Added stub release notes and release date for 4.2.24.Sarah Boyce
Backport of 4c71e334401a3e83c013419d0e2211543e7e873b from main.
2025-08-04[4.2.x] Refs #36535 -- Doc'd that docutils < 0.22 is required.Natalia
Backport of 9d9b3bc71702e4bd4b7f8e1602d83fd69f871e94 from stable/5.1.x.
2025-06-10[4.2.x] Added follow-up to CVE-2025-48432 to security archive.Sarah Boyce
Backport of 2714bc3f2c8675d32caae764c874ac381c836c7f from main.
2025-06-06[4.2.x] Refs CVE-2025-48432 -- Prevented log injection in remaining response ↵Jake Howard
logging. Migrated remaining response-related logging to use the `log_response()` helper to avoid potential log injection, to ensure untrusted values like request paths are safely escaped. Co-authored-by: Natalia <124304+nessita@users.noreply.github.com> Backport of 957951755259b412d5113333b32bf85871d29814 from main.
2025-06-04[4.2.x] Added CVE-2025-48432 to security archive.Natalia
Backport of 51923c576a596ad00214e44028f9dee9748bce95 from main.
2025-06-04[4.2.x] Fixed CVE-2025-48432 -- Escaped formatting arguments in ↵Natalia
`log_response()`. Suitably crafted requests containing a CRLF sequence in the request path may have allowed log injection, potentially corrupting log files, obscuring other attacks, misleading log post-processing tools, or forging log entries. To mitigate this, all positional formatting arguments passed to the logger are now escaped using "unicode_escape" encoding. Thanks to Seokchan Yoon (https://ch4n3.kr/) for the report. Co-authored-by: Carlton Gibson <carlton@noumenal.es> Co-authored-by: Jake Howard <git@theorangeone.net> Backport of a07ebec5591e233d8bbb38b7d63f35c5479eef0e from main.
2025-05-28[4.2.x] Added stub release notes and release date for 4.2.22.Natalia
Backport of 1a744343999c9646912cee76ba0a2fa6ef5e6240 from main.
2025-05-26[4.2.x] Fixed #36402, Refs #35980 -- Updated built package name in reusable ↵Jason Judkins
apps tutorial for PEP 625. Backport of 1307b8a1cb05762147736d0f347792b33f645390 from main.
2025-05-09[4.2.x] Refs #35980 -- Added release note about changes in release artifacts ↵Natalia
filenames. Backport of 42ab99309d347f617d60751c2e8d627fb2963049 from main.
2025-05-09[4.2.x] Removed "Expected" from release date for 4.2.21.Natalia
Backport of c86156378db09e68db3a9ae1c108f661a67e3abe from main.
2025-05-07[4.2.x] Cleaned up CVE-2025-32873 security archive description.Natalia
Backport of 37f2a77c729ccb71059c8e66c49b07499d2edf60 from main.
2025-05-07[4.2.x] Added CVE-2025-32873 to security archive.Natalia
Backport of fdabda4e05587347aeb3382a442d7e77c1a0c3e5 from main.
2025-05-06[4.2.x] Fixed CVE-2025-32873 -- Mitigated potential DoS in strip_tags().Sarah Boyce
Thanks to Elias Myllymäki for the report, and Shai Berger and Jake Howard for the reviews. Co-authored-by: Natalia <124304+nessita@users.noreply.github.com> Backport of 9f3419b519799d69f2aba70b9d25abe2e70d03e0 from main.
2025-05-05[4.2.x] Changed packing recommendation to use pyproject.toml in reusable ↵Claude Paroz
apps docs. Backport of f71bcc001bb3324020cfd756e84d4e9c6bb98cce from main.
generated by cgit v1.3 (git 2.53.0) at 2026-07-03 16:07:10 +0000