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CVE-2026-21619

25
FAUCET Score

CVE-2026-21619 describes an Uncontrolled Resource Consumption

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.9.1, < 3.27.0CPE matchmatch criteria
cpe:2.3:a:erlang:rebar3:*:*:*:*:*:*:*:*
>= 2.3.0, < 2.3.2CPE matchmatch criteria
cpe:2.3:a:hex:hex:*:*:*:*:*:*:*:*
>= 0.1.0, < 0.12.1CPE matchmatch criteria
cpe:2.3:a:hex:hex_core:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

2.0LOW

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
LOW
User Interaction
ACTIVE
VS Confidentiality
NONE
VS Integrity
NONE
VS Availability
LOW
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.58%
Probability of exploitation in next 30 days
EPSS Percentile
44.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0058 is in the 21st 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)

erlangpatch availablevia ghsa
Product: hex_coreFixed in: 0.12.1
github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

erlangGHSA-hx9w-f2w9-9g96low

hex_core has Unsafe Deserialization of Erlang Terms

Mar 1, 2026

References

cna.erlef.org / cves/CVE-2026-21619.html
github.com / erlang/rebar3/commit/1d4478f527e373de0b225951e53115450e0d9b9d
Patch
github.com / hexpm/hex/commit/636739f3322514e9303ca335fb630696fcbb3c95
Patch
github.com / hexpm/hex_core/commit/cdf726095bca85ad2549d146df1e831ae93c2b13
Patch
github.com / hexpm/hex_core/security/advisories/GHSA-hx9w-f2w9-9g96
MitigationVendor Advisory
osv.dev / vulnerability/EEF-CVE-2026-21619