CVE-2020-10735: A flaw was found in python.
Noroxi assessment
Priority: Monitor (action score 31/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 4.5% (FIRST EPSS); higher than 91.6% of all records.
- Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
- Fixed version: platform-python (AlmaLinux:8) 3.6.8-48.el8_7.1.alma; platform-python-debug (AlmaLinux:8) 3.6.8-48.el8_7.1.alma; platform-python-devel (AlmaLinux:8) 3.6.8-48.el8_7.1.alma.
- Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).
Low priority for now. Upgrade to platform-python (AlmaLinux:8) 3.6.8-48.el8_7.1.alma; platform-python-debug (AlmaLinux:8) 3.6.8-48.el8_7.1.alma; platform-python-devel (AlmaLinux:8) 3.6.8-48.el8_7.1.alma or later.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · FIRST EPSS
A flaw was found in python. In algorithms with quadratic time complexity using non-binary bases, when using int("text"), a system could take 50ms to parse an int string with 100,000 digits and 5s for 1,000,000 digits (float, decimal, int.from_bytes(), and int() for binary bases 2, 4, 8, 16, and 32 are not affected). The highest threat from this vulnerability is to system availability.
- BDU:2022-05599
- ALSA-2022:7323
- ALSA-2023:0833
- ALSA-2023:2763
- ALSA-2023:2764
- DLA-3477-1
- DLA-3966-1
- DLA-3980-1
- openSUSE-SU-2024:12336-1
- openSUSE-SU-2024:12340-1
- openSUSE-SU-2024:12341-1
- openSUSE-SU-2024:12342-1
- openSUSE-SU-2024:12910-1
- openSUSE-SU-2024:14109-1
- openSUSE-SU-2024:14434-1
- openSUSE-SU-2025:14712-1
- openSUSE-SU-2025:15713-1
- RHSA-2022:6766
- RHSA-2022:7323
- RHSA-2023:0833
- Published
- Sep 9, 2022
- Updated
- Oct 14, 2026
- EPSS
- 4.5% · 91th percentile
- CWE
- CWE-704
Report tools
Action score
31
Monitor
Low priority for now.
- CVSS
- 30 / 40 · 7.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 1 / 30 · 4.5%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- 7.5
- CNA · redhat
- 6.2
- 1.3 point gap
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
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Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| Vendor | Product | CPE |
|---|---|---|
| python | python | cpe:2.3:a:python:python |
| redhat | quay | cpe:2.3:a:redhat:quay |
| redhat | software collections | cpe:2.3:a:redhat:software_collections |
| fedoraproject | fedora | cpe:2.3:o:fedoraproject:fedora |
| redhat | enterprise linux | cpe:2.3:o:redhat:enterprise_linux |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- fedoraproject fedora35
- fedoraproject fedora36
- fedoraproject fedora37
- python python3.9.0 and later · before 3.9.14
- python python3.10.0 and later · before 3.10.7
- python python3.7.0 and later · before 3.7.14
- python python3.8.0 and later · before 3.8.14
- python python3.11.0
- redhat enterprise linux8.0
- redhat quay3.0.0
- redhat software collectionsall versions
Versions reported by the vendor
Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.
n/a python
- python 3.7affected
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| AlmaLinux:8 | platform-python | before 3.6.8-48.el8_7.1.alma | 3.6.8-48.el8_7.1.alma |
| AlmaLinux:8 | platform-python-debug | before 3.6.8-48.el8_7.1.alma | 3.6.8-48.el8_7.1.alma |
| AlmaLinux:8 | platform-python-devel | before 3.6.8-48.el8_7.1.alma | 3.6.8-48.el8_7.1.alma |
| AlmaLinux:8 | python3-idle | before 3.6.8-48.el8_7.1.alma | 3.6.8-48.el8_7.1.alma |
| AlmaLinux:8 | python3-libs | before 3.6.8-48.el8_7.1.alma | 3.6.8-48.el8_7.1.alma |
| AlmaLinux:8 | python3-test | before 3.6.8-48.el8_7.1.alma | 3.6.8-48.el8_7.1.alma |
| AlmaLinux:8 | python3-tkinter | before 3.6.8-48.el8_7.1.alma | 3.6.8-48.el8_7.1.alma |
| AlmaLinux:8 | python38 | before 3.8.16-1.module_el8.8.0+3482+d5d93a3e | 3.8.16-1.module_el8.8.0+3482+d5d93a3e |
| AlmaLinux:8 | python38-asn1crypto | before 1.2.0-3.module_el8.6.0+2778+cd494b30 | 1.2.0-3.module_el8.6.0+2778+cd494b30 |
| AlmaLinux:8 | python38-atomicwrites | before 1.3.0-8.module_el8.6.0+2778+cd494b30 | 1.3.0-8.module_el8.6.0+2778+cd494b30 |
| AlmaLinux:8 | python38-attrs | before 19.3.0-3.module_el8.6.0+2778+cd494b30 | 19.3.0-3.module_el8.6.0+2778+cd494b30 |
| AlmaLinux:8 | python38-babel | before 2.7.0-11.module_el8.6.0+2778+cd494b30 | 2.7.0-11.module_el8.6.0+2778+cd494b30 |
| AlmaLinux:8 | python38-cffi | before 1.13.2-3.module_el8.6.0+3163+f4472775 | 1.13.2-3.module_el8.6.0+3163+f4472775 |
| AlmaLinux:8 | python38-cffi | before 1.13.2-3.module_el8.6.0+2778+cd494b30 | 1.13.2-3.module_el8.6.0+2778+cd494b30 |
| AlmaLinux:8 | python38-chardet | before 3.0.4-19.module_el8.6.0+2778+cd494b30 | 3.0.4-19.module_el8.6.0+2778+cd494b30 |
| AlmaLinux:8 | python38-cryptography | before 2.8-3.module_el8.6.0+2778+cd494b30 | 2.8-3.module_el8.6.0+2778+cd494b30 |
| AlmaLinux:8 | python38-cryptography | before 2.8-3.module_el8.6.0+3163+f4472775 | 2.8-3.module_el8.6.0+3163+f4472775 |
| AlmaLinux:8 | python38-Cython | before 0.29.14-4.module_el8.6.0+2778+cd494b30 | 0.29.14-4.module_el8.6.0+2778+cd494b30 |
| AlmaLinux:8 | python38-Cython | before 0.29.14-4.module_el8.6.0+3163+f4472775 | 0.29.14-4.module_el8.6.0+3163+f4472775 |
| AlmaLinux:8 | python38-debug | before 3.8.16-1.module_el8.8.0+3482+d5d93a3e | 3.8.16-1.module_el8.8.0+3482+d5d93a3e |
| AlmaLinux:8 | python38-devel | before 3.8.16-1.module_el8.8.0+3482+d5d93a3e | 3.8.16-1.module_el8.8.0+3482+d5d93a3e |
| AlmaLinux:8 | python38-idle | before 3.8.16-1.module_el8.8.0+3482+d5d93a3e | 3.8.16-1.module_el8.8.0+3482+d5d93a3e |
| AlmaLinux:8 | python38-idna | before 2.8-6.module_el8.6.0+2778+cd494b30 | 2.8-6.module_el8.6.0+2778+cd494b30 |
| AlmaLinux:8 | python38-jinja2 | before 2.11.3-1.module_el8.7.0+3344+99a6a656 | 2.11.3-1.module_el8.7.0+3344+99a6a656 |
+96
Same product
python: all recordsOther highest-scoring records for the same primary product.
- CVE-2016-5636Integer overflow in the get_data function in zipimport.c in CPython (aka Python) before 2.7.12, 3.x before 3.4.5, and 3.5.x before 3.5.2 all47Plan
- CVE-2007-4559Directory traversal vulnerability in the (1) extract and (2) extractall functions in the tarfile module in Python allows user-assisted remot47Plan
- CVE-2021-3177Python 3.x through 3.9.1 has a buffer overflow in PyCArg_repr in _ctypes/callproc.c, which may lead to remote code execution in certain Pyth46Plan
Published before and after this one in the same product
- ← EarlierCVE-2021-28861Aug 23, 2022 · Python 3.x through 3.10 has an open redirection vulnerability in lib/http/server.py due to no protection against multiple (/) at the beginni30Monitor
- ← EarlierCVE-2021-4189Aug 24, 2022 · A flaw was found in Python, specifically in the FTP (File Transfer Protocol) client library in PASV (passive) mode.22Monitor
- Later →CVE-2022-42919Nov 6, 2022 · Python 3.9.x before 3.9.16 and 3.10.x before 3.10.9 on Linux allows local privilege escalation in a non-default configuration.31Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| almalinux:platform-python | 3.6.8-48.el8_7.1.alma · AlmaLinux:8 | Package registry (OSV) |
| almalinux:platform-python-debug | 3.6.8-48.el8_7.1.alma · AlmaLinux:8 | Package registry (OSV) |
| almalinux:platform-python-devel | 3.6.8-48.el8_7.1.alma · AlmaLinux:8 | Package registry (OSV) |
| almalinux:python-unversioned-command | 3.9.10-3.el9_0 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:python3 | 3.9.10-3.el9_0 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:python3-debug | 3.9.10-3.el9_0 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:python3-devel | 3.9.10-3.el9_0 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:python3-idle | 3.9.10-3.el9_0 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:python3-libs | 3.9.10-3.el9_0 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:python3-test | 3.9.10-3.el9_0 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:python3-tkinter | 3.9.10-3.el9_0 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:python38 | 3.8.16-1.module_el8.8.0+3482+d5d93a3e · AlmaLinux:8 | Package registry (OSV) |
| debian:pypy3 | 7.3.10+dfsg-1 · Debian:12 | Package registry (OSV) |
| debian:python3.11 | 3.11.0~rc2-1 · Debian:12 | Package registry (OSV) |
| debian:python3.7 | 3.7.3-2+deb10u5 · Debian:10 | Package registry (OSV) |
| debian:python3.9 | 3.9.2-1+deb11u2 · Debian:11 | Package registry (OSV) |
| opensuse:python3 | 3.6.15-150300.10.37.2 · openSUSE:Leap Micro 5.2 | Package registry (OSV) |
| opensuse:python3-core | 3.6.15-150300.10.37.2 · openSUSE:Leap Micro 5.2 | Package registry (OSV) |
| opensuse:python3-documentation | 3.6.15-150300.10.37.1 · openSUSE:Leap 15.3 | Package registry (OSV) |
| opensuse:python310 | 3.10.7-150400.4.10.1 · openSUSE:Leap 15.4 | Package registry (OSV) |
| opensuse:python310-core | 3.10.7-150400.4.10.1 · openSUSE:Leap 15.4 | Package registry (OSV) |
| opensuse:python310-documentation | 3.10.7-150400.4.10.1 · openSUSE:Leap 15.4 | Package registry (OSV) |
| opensuse:python311 | 3.11.0rc2-1.1 · openSUSE:Tumbleweed | Package registry (OSV) |
| opensuse:python312 | 3.12.0a7-1.1 · openSUSE:Tumbleweed | Package registry (OSV) |
| opensuse:python38 | 3.8.14-1.1 · openSUSE:Tumbleweed | Package registry (OSV) |
| opensuse:python39 | 3.9.14-150300.4.16.1 · openSUSE:Leap 15.3 | Package registry (OSV) |
| opensuse:python39-core | 3.9.14-150300.4.16.1 · openSUSE:Leap 15.3 | Package registry (OSV) |
| opensuse:python39-documentation | 3.9.14-150300.4.16.1 · openSUSE:Leap 15.3 | Package registry (OSV) |
| red hat:python-unversioned-command | 0:3.9.10-3.el9_0 · Red Hat:enterprise_linux:9::appstream | Package registry (OSV) |
| red hat:python3-devel | 0:3.9.10-3.el9_0 · Red Hat:enterprise_linux:9::appstream | Package registry (OSV) |
+33
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
National notice (Türkiye Cybersecurity Directorate / USOM)
Official security notices citing this record; remediation advice is on the agency's page.
- TR-22-0653 · Oct 3, 2022(Python için Güvenlik Güncellemeleri)
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- none
- Availability
- high · the service can be disrupted
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- High
Weakness class (CWE)
CWE-704 · Incorrect Type Conversion or CastCVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log
- SSVC exploitation— → none
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (19 more)Show less
- www.openwall.com/lists/oss-security/2022/09/21/4
- access.redhat.com/security/cve/CVE-2020-10735
- bugzilla.redhat.com/show_bug.cgi?id=1834423
- docs.google.com/document/d/1KjuF_aXlzPUxTK4BMgezGJ2Pn7uevfX7g0_mvgHlL7Y
- github.com/python/cpython/issues/95778
- lists.debian.org/debian-lts-announce/2023/06/msg00039.html
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2VCU6EVQDIXNCEDJUCTFIER2WVNNDTYZ/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/32AAQKABEKFCB5DDV5OONRZK6BS23HPW/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4EWKR2SPX3JORLWCXFY3KN2U5B5CIUQQ/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6XL6E5A3I36TRR73VNBOXNIQP4AMZDFZ/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/76YE7AM37MRU76XJV4M27CWDAMUGNRYK/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HSRPVJZL6DJFWKYRHMNJB7VCEUCBKRF5/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IFGV7P2PYFBMK32OKHCAC2ZPJQV5AUDF/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NHC6IUU7CLRQ3QLPWUXLONSG3SXFTR47/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OKYE2DOI2X7WZXAWTQJZAXYIWM37HDCY/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OT5U223OE5ZOUHZAZYSYSWVJQIKDE73E/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OT5WQB7Z3CXOWVBD2AFAHYPA5ONYFFZ4/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PD7FTLJOIGMUSCDR3JAN6WRFHJEE4PH5/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SZYJSGLSCQOKXXFVJVJQAXLEOJBIWGEL/
Vendor advisories and official records. Exploit/PoC links are deliberately left out.