CVE-2026-28808

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.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• 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

0.55% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 46.1% of scored records. A rank, not a probability.

NVD base score

8.3 (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:N/VC:H/VI:L/VA:N/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

Modified. NVD last modified this record on 2026-10-26.

Red Hat severity

Important. 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

2026-04-07 12:28Z6 MO AGO

Last updated

2026-09-22 09:08Z1 MO AGO

Reserved

2026-03-03

Assigning CNA

EEF

Record state

PUBLISHED

Severity

High (CVSS 8.3)

CNA CVSS vector

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

Weaknesses

• CWE-863Incorrect AuthorizationClass
• CWE-551Incorrect Behavior Order: Authorization Before Parsing and CanonicalizationBase

Data version

5.2

Document digest

a88fffd8f780ddba573e059e8a20b03c71230645187e6e351526afedcdf99221

• github.comGitHub Advisoryhttps://github.com/erlang/otp/security/advisories/GHSA-3vhp-h532-mc3frelatedvendor-advisory
• cna.erlef.orgEEF CNA record for CVE-2026-28808https://cna.erlef.org/cves/CVE-2026-28808.htmlrelated
• osv.devOSV record EEF-CVE-2026-28808https://osv.dev/vulnerability/EEF-CVE-2026-28808related
• www.erlang.orgErlang/OTP version orderinghttps://www.erlang.org/doc/system/versions.html#order-of-versionsx_version-scheme
• github.comIntroducing commit 07b8f44 in erlang/otphttps://github.com/erlang/otp/commit/07b8f441ca711f9812fad9e9115bab3c3aa92f79related
• github.comFix commit 8fc71ac in erlang/otphttps://github.com/erlang/otp/commit/8fc71ac6af4fbcc54103bec2983ef22e82942688patch
• github.comFix commit 9dfa0c5 in erlang/otphttps://github.com/erlang/otp/commit/9dfa0c51eac97866078e808dec2183cb7871ff7cpatch
• access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-28808vdb-entryx_refsource_REDHAT
• bugzilla.redhat.comRHBZ#2455909https://bugzilla.redhat.com/show_bug.cgi?id=2455909issue-trackingx_refsource_REDHAT
• security.access.redhat.comhttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-28808.jsonx_sadp-csaf-vex