Description
NLTK versions before 3.9.4 contain an unbounded recursion vulnerability in JSONTaggedDecoder.decode_obj() that allows attackers to cause denial of service by supplying deeply nested JSON structures. Attackers can craft JSON payloads exceeding the recursion limit to trigger an unhandled RecursionError that crashes the Python process.
Mitigation
Minimal update. May introduce new vulnerabilities or breaking changes.
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 debian 11 | | =3.10.0-1 || =3.10.1-1 || =3.10.3-1 || =3.5-1 || =3.6.5-1 || =3.6.7-1 || =3.7-1 || =3.8-1 || =3.8.1-1 || =3.9.1-1 || =3.9.1-2 || =3.9.2-1 || =3.9.3-1 | - |
debian 12 | | =3.10.0-1 || =3.10.1-1 || =3.10.3-1 || =3.8-1 || =3.8.1-1 || =3.9.1-1 || =3.9.1-2 || =3.9.2-1 || =3.9.3-1 | - |
debian 13 | | =3.10.0-1 || =3.10.1-1 || =3.10.3-1 || =3.9.1-2 || =3.9.2-1 || =3.9.3-1 | - |
debian 14 | | =3.9.1-2 || =3.9.2-1 || =3.9.3-1 || >=0 <3.10.0-1 | 3.10.0-1 |
 pypi | | =0.8 || =0.9 || =0.9.3 || =0.9.4 || =0.9.5 || =0.9.6 || =0.9.7 || =0.9.8 || =0.9.9 || =2.0.1 || =2.0.1rc1 || =2.0.1rc2-git || =2.0.1rc3 || =2.0.1rc4 || =2.0.2 || =2.0.3 || =2.0.4 || =2.0.5 || =2.0b4 || =2.0b5 || =2.0b6 || =2.0b7 || =2.0b8 || =2.0b9 || =3.0.0 || =3.0.0b1 || =3.0.0b2 || =3.0.1 || =3.0.2 || =3.0.3 || =3.0.4 || =3.0.5 || =3.1 || =3.2 || =3.2.1 || =3.2.2 || =3.2.3 || =3.2.4 || =3.2.5 || =3.3 || =3.4 || =3.4.1 || =3.4.2 || =3.4.3 || =3.4.4 || =3.4.5 || =3.5 || =3.5b1 || =3.6 || =3.6.1 || =3.6.2 || =3.6.3 || =3.6.4 || =3.6.5 || =3.6.6 || =3.6.7 || =3.7 || =3.8 || =3.8.1 || =3.9 || =3.9.1 || =3.9.2 || =3.9.3 || =3.9b1 || >=0 <=3.9.3 | 3.9.4 |
