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CVE-2019-19275

25
FAUCET Score

CVE-2019-19275 describes an out-of-bounds read vulnerability in typed_ast versions 1.3.0 and 1.3.1, affecting the Python typed_ast library. This flaw allows an attacker to crash a Python interpreter process by providing specially crafted Python source code for parsing, even if not executed. With a CVSS score of 7.5 (HIGH), this vulnerability has a network attack vector, low attack complexity, and high impact on availability, though it does not affect confidentiality or integrity. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.3.0CPE matchmatch criteria
cpe:2.3:a:python:typed_ast:1.3.0:*:*:*:*:*:*:*
1.3.1CPE matchmatch criteria
cpe:2.3:a:python:typed_ast:1.3.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.28%
Probability of exploitation in next 30 days
EPSS Percentile
87.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0328 is in the 77th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
pippatch availablevia ghsa
Product: typed-astFixed in: 1.3.2

Vendor Advisories (1)

pipGHSA-7xxv-wpxj-mx5vhigh

typed-ast Out-of-bounds Read

Dec 2, 2019

References

bugs.python.org / issue36495
PatchVendor Advisory
github.com / python/cpython/commit/a4d78362397fc3bced6ea80fbc7b5f4827aec55e
PatchThird Party Advisory
github.com / python/cpython/commit/dcfcd146f8e6fc5c2fc16a4c192a0c5f5ca8c53c
PatchThird Party Advisory
github.com / python/typed_ast/commit/156afcb26c198e162504a57caddfe0acd9ed7dce
PatchThird Party Advisory
github.com / python/typed_ast/commit/dc317ac9cff859aa84eeabe03fb5004982545b3b
PatchThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/LG5H4Q6LFVRX7SFXLBEJMNQFI4T5SCEA