CVE-2026-11972

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Source
https://cve.org/CVERecord?id=CVE-2026-11972
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-11972.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-11972
Aliases
Downstream
Related
Published
2026-06-23T22:02:45.434Z
Modified
2026-08-21T18:27:45.854380694Z
Severity
  • 8.2 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
tarfile opened in streaming mode mishandles EOF
Details

When using the "tarfile" module with a file opened in "streaming mode" (mode="r|") the tarfile module did not properly handle EOF, making archive parsing take exponentially longer.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/11xxx/CVE-2026-11972.json",
    "cna_assigner": "PSF",
    "cwe_ids": [
        "CWE-252",
        "CWE-606",
        "CWE-770"
    ]
}
References

Affected packages

Git / github.com/python/cpython

Affected ranges

Type
GIT
Repo
https://github.com/python/cpython
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Introduced
deaf509e8fc6e0363bd6f26d52ad42f976ec42f2
Introduced
0fb18b02c8ad56299d6a2910be0bab8ad601ef24
Introduced
60403a5409ff2c3f3b07dd2ca91a7a3e096839c7
Introduced
ebf955df7a89ed0c7968f79faec1de49f61ed7cb
Introduced
f31a89bb901067dd105b00cfa90523cf7ffdbbdd
Fixed
3a19c2f0b3e91ce8f23d0cc64d4c9ee557823f24
Fixed
41388c9cb160d0886d5ca00d2e6c8782608a4549
Fixed
2abcf904b8dac8c999d2b3aac76681abb333798a
Fixed
4061bc4c35f7c26f25264666d4ba083b93d2f6f9
Fixed
823f0323ee6ec1402088b73bce1a38473cac36dc
Fixed
0a6fa6274a6c0ab38758302e85e1625920dbd2ad
Fixed
3f031d431f80668e14f3bc066bbf4369cd9281b9
Fixed
4ce6bf7c8aa7725828a38981c306f214c1f29365
Fixed
7f0dc59c9a70f8f3b4da33d7c4a2ba552a7acc21
Fixed
e86666c9dd256d52d0fbef6feb1ea4a51768fdec
Fixed
eb63c0f94dfcbea7fda8eab6213818e134d67192
Fixed
f50bf13566189c8d0ce5a814f33eff3d89951896
Fixed
f5e2776ff0383a902c12acf2b703e7e951fc8438
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "3.10.21"
        },
        {
            "introduced": "3.11.0"
        },
        {
            "fixed": "3.11.16"
        },
        {
            "introduced": "3.12.0"
        },
        {
            "fixed": "3.12.14"
        },
        {
            "introduced": "3.13.0"
        },
        {
            "fixed": "3.13.15"
        },
        {
            "introduced": "3.14.0"
        },
        {
            "fixed": "3.14.7"
        },
        {
            "introduced": "3.15.0a1"
        },
        {
            "fixed": "3.15.0b4"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

v0.*
v0.9.8
v0.9.9
v1.*
v1.0.1
v1.0.2
v1.1
v1.1.1
v1.2
v1.2b1
v1.2b2
v1.2b3
v1.2b4
v1.3
v1.3b1
v1.4
v1.4b1
v1.4b2
v1.4b3
v1.5
v1.5.1
v1.5.2
v1.5.2a1
v1.5.2a2
v1.5.2b1
v1.5.2b2
v1.5.2c1
v1.5a1
v1.5a2
v1.5a3
v1.5a4
v1.5b1
v1.5b2
v1.6a1
v1.6a2
v2.*
v2.0
v2.0b1
v2.0b2
v2.0c1
v2.1
v2.1a1
v2.1a2
v2.1b1
v2.1b2
v2.1c1
v2.1c2
v2.2a3
v2.3c1
v2.3c2
v2.4
v2.4a1
v2.4a2
v2.4a3
v2.4b1
v2.4b2
v2.4c1
v3.*
v3.0a1
v3.0a2
v3.0a3
v3.0a4
v3.0a5
v3.0b1
v3.0b2
v3.0b3
v3.0rc1
v3.0rc2
v3.0rc3
v3.1
v3.10.0a1
v3.10.0a7
v3.10.0b1
v3.10.0b2
v3.10.0b3
v3.10.0b4
v3.10.0rc1
v3.10.0rc2
v3.10.1
v3.10.10
v3.10.11
v3.10.12
v3.10.13
v3.10.14
v3.10.15
v3.10.16
v3.10.17
v3.10.18
v3.10.19
v3.10.2
v3.10.20
v3.10.3
v3.10.4
v3.10.5
v3.10.6
v3.10.7
v3.10.8
v3.10.9
v3.11.0a3
v3.11.0a4
v3.11.0a5
v3.11.0a6
v3.11.0a7
v3.11.0b1
v3.11.0b2
v3.11.0b3
v3.11.0b4
v3.11.0b5
v3.11.0rc1
v3.11.0rc2
v3.11.1
v3.11.10
v3.11.11
v3.11.12
v3.11.13
v3.11.14
v3.11.15
v3.11.2
v3.11.3
v3.11.4
v3.11.5
v3.11.6
v3.11.7
v3.11.8
v3.11.9
v3.12.0
v3.12.1
v3.12.10
v3.12.11
v3.12.12
v3.12.13
v3.12.2
v3.12.3
v3.12.4
v3.12.5
v3.12.6
v3.12.7
v3.12.8
v3.12.9
v3.13.0
v3.13.1
v3.13.10
v3.13.11
v3.13.12
v3.13.13
v3.13.14
v3.13.2
v3.13.3
v3.13.4
v3.13.5
v3.13.6
v3.13.7
v3.13.8
v3.14.0
v3.14.1
v3.14.2
v3.14.3
v3.14.4
v3.14.5
v3.14.5rc1
v3.14.6
v3.15.0b1
v3.15.0b2
v3.15.0b3
v3.1a1
v3.1a2
v3.1b1
v3.1rc1
v3.1rc2
v3.2a1
v3.2a2
v3.2a3
v3.2a4
v3.2b1
v3.2b2
v3.2rc1
v3.2rc2
v3.2rc3
v3.3.0a2
v3.3.0a3
v3.3.0a4
v3.3.0b1
v3.3.0b2
v3.3.0rc1
v3.3.0rc2
v3.3.0rc3
v3.4.0a1
v3.4.0a2
v3.4.0a3
v3.4.0a4
v3.4.0b1
v3.4.0b2
v3.4.0b3
v3.5.0a1
v3.5.0a2
v3.5.0a3
v3.5.0a4
v3.5.0b1
v3.6.0a3
v3.6.0b1
v3.7.0a2
v3.9.0a2

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-11972.json"