CVE-2026-11972

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Source
https://cve.org/CVERecord?id=CVE-2026-11972
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-11972.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-11972
Aliases
Downstream
Published
2026-06-23T22:02:45.434Z
Modified
2026-07-08T07:59:46.112772271Z
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 
{
    "unresolved_ranges": [
        {
            "source": "AFFECTED_FIELD",
            "extracted_events": [
                {
                    "fixed": "3.15.0"
                }
            ]
        }
    ],
    "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
Fixed
3f031d431f80668e14f3bc066bbf4369cd9281b9
Fixed
4ce6bf7c8aa7725828a38981c306f214c1f29365
Fixed
7f0dc59c9a70f8f3b4da33d7c4a2ba552a7acc21
Fixed
e86666c9dd256d52d0fbef6feb1ea4a51768fdec
Fixed
eb63c0f94dfcbea7fda8eab6213818e134d67192
Fixed
f50bf13566189c8d0ce5a814f33eff3d89951896
Database specific 
{
    "source": "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
v3.12.0a1
v3.12.0a2
v3.12.0a3
v3.12.0a4
v3.12.0a5
v3.12.0a6
v3.12.0a7
v3.12.0b1
v3.13.0
v3.13.0a1
v3.13.0a2
v3.13.0a3
v3.13.0a4
v3.13.0a5
v3.13.0a6
v3.13.0b1
v3.13.0b2
v3.13.0b3
v3.13.0b4
v3.13.0rc1
v3.13.0rc2
v3.13.0rc3
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
v3.14.0a1
v3.14.0a2
v3.14.0a3
v3.14.0a4
v3.14.0a5
v3.14.0a6
v3.14.0a7
v3.14.0b1
v3.14.0b2
v3.14.0b3
v3.14.0b4
v3.14.0rc1
v3.14.0rc2
v3.14.0rc3
v3.14.1
v3.14.2
v3.14.3
v3.14.4
v3.14.5
v3.14.5rc1
v3.14.6
v3.15.0a1
v3.15.0a2
v3.15.0a3
v3.15.0a4
v3.15.0a5
v3.15.0a6
v3.15.0a7
v3.15.0a8
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/cve-osv-conversion/osv-output/CVE-2026-11972.json"