CVE-2026-105274

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.44% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 38.6% of scored records. A rank, not a probability.

NVD base score

2.1 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/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

NVD analysis status

Deferred. NVD last modified this record on 2026-10-15.

Red Hat severity

Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-10-12 16:43Z16 DAYS AGO

Last updated

2026-10-15 18:05Z13 DAYS AGO

Reserved

2026-10-10

Assigning CNA

EEF

Record state

PUBLISHED

Severity

Low (CVSS 2.1)

CNA CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Weaknesses

• CWE-409Improper Handling of Highly Compressed Data (Data Amplification)Base

Data version

5.2

Document digest

1a33ae085b90017c67f546f2fec4a7c444a6fa02ca0edcb7c7fb75cb1b09449f

• github.comGitHub Advisoryhttps://github.com/hexpm/hex_core/security/advisories/GHSA-7c4r-cgf9-9jmqrelatedvendor-advisory
• cna.erlef.orgEEF CNA record for CVE-2026-105274https://cna.erlef.org/cves/CVE-2026-105274.htmlrelated
• osv.devOSV record EEF-CVE-2026-105274https://osv.dev/vulnerability/EEF-CVE-2026-105274related
• github.comIntroducing commit 209c02e in erlang/rebar3https://github.com/erlang/rebar3/commit/209c02ec57c2cc3207ee0174c3af3675b8dc8f79related
• github.comFix commit 360838a in erlang/rebar3https://github.com/erlang/rebar3/commit/360838a22f5b3a88c0358207f2923059bcbb3afbpatch
• github.comIntroducing commit fbb6d9d in hexpm/hex_corehttps://github.com/hexpm/hex_core/commit/fbb6d9de472e5edb8d6fb6b32a91cb266137892erelated
• github.comFix commit ebe25d1 in hexpm/hex_corehttps://github.com/hexpm/hex_core/commit/ebe25d110717f6a3addba5232cd4a7dc1c76b628patch
• github.comIntroducing commit 671f695 in hexpm/hexhttps://github.com/hexpm/hex/commit/671f695ac548ed01f5828c2a739ecaa942b21007related
• github.comFix commit d8b60ee in hexpm/hexhttps://github.com/hexpm/hex/commit/d8b60eee97abb119d525306f048969a217d793a5patch