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support msgpack 1.2.4 - #10551
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msgpack 1.2.4 limits container preallocation in the C unpacker to 10000 items, so a large declared array/map length can no longer force an excessive memory allocation (GHSA-j8c6-9vc5-hj6x). max_array_len and max_map_len still limit the total container size. The other changes only affect the pure Python fallback unpacker, which borg does not use. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## master #10551 +/- ##
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- Coverage 89.36% 89.34% -0.03%
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Files 104 104
Lines 20082 20091 +9
Branches 3152 3154 +2
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+ Hits 17947 17950 +3
- Misses 1478 1484 +6
Partials 657 657 ☔ View full report in Codecov by Harness. |
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msgpack 1.2.4 limits container preallocation in the C unpacker to 10000 items, so a large declared array/map length can no longer force an excessive memory allocation (GHSA-j8c6-9vc5-hj6x).
max_array_lenandmax_map_lenstill limit the total container size.The other 1.2.4 changes only affect the pure Python fallback unpacker, which borg does not use.
Tested locally (macOS, Python 3.14) with the msgpack 1.2.4 wheel from PyPI: full test suite passes.
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