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CVE-2026-21619 Detail

Description

Uncontrolled Resource Consumption, Deserialization of Untrusted Data vulnerability in hexpm hex_core (hex_api modules), hexpm hex (mix_hex_api modules), erlang rebar3 (r3_hex_api modules) allows Object Injection, Excessive Allocation. This vulnerability is associated with program files src/hex_api.erl, src/mix_hex_api.erl, apps/rebar/src/vendored/r3_hex_api.erl and program routines hex_core:request/4, mix_hex_api:request/4, r3_hex_api:request/4. This issue affects hex_core: from 0.1.0 before 0.12.1; hex: from 2.3.0 before 2.3.2; rebar3: from 3.9.1 before 3.27.0.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

Nist CVSS score does not match with CNA score
CNA:  EEF
CVSS-B 2.0 LOW
Vector:  CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://github.com/erlang/rebar3/commit/1d4478f527e373de0b225951e53115450e0d9b9d EEF
https://github.com/hexpm/hex/commit/636739f3322514e9303ca335fb630696fcbb3c95 EEF
https://github.com/hexpm/hex_core/commit/cdf726095bca85ad2549d146df1e831ae93c2b13 EEF
https://github.com/hexpm/hex_core/security/advisories/GHSA-hx9w-f2w9-9g96 EEF

Weakness Enumeration

CWE-ID CWE Name Source
CWE-400 Uncontrolled Resource Consumption EEF  
CWE-502 Deserialization of Untrusted Data EEF  

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-21619
NVD Published Date:
02/27/2026
NVD Last Modified:
02/27/2026
Source:
EEF