No exploitation reportedFix available

CVE-2026-3505

Q: Is CVE-2026-3505 actively exploited?

Active exploitation of CVE-2026-3505 has not been confirmed. Its EPSS score was 0.9% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2026-3505?

CVE-2026-3505 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

No exploitation reported by the sources we read.

Published2026-04-15
WeaknessCWE-400 · CWE-770

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Allocation of resources without limits or throttling, Uncontrolled Resource Consumption vulnerability in Legion of the Bouncy Castle Inc. BC-JAVA bcpg on all (pg modules). This vulnerability is associated with program files AEADEncDataPacket.Java, BcAEADUtil.Java, JceAEADUtil.Java, OperatorHelper.Java. This issue affects BC-JAVA: from 1.74 before 1.80.2, from 1.81 before 1.81.1, from 1.82 before 1.84.

Timeline

dates in UTC

2026-04-1510:16CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2026-3505?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2026-3505?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

OSV

bcpg-jdk12

Branch	Affected	Fixed in	Source
130.x	≤ 130	no fix published	OSV

bcpg-jdk14

Branch	Affected	Fixed in	Source
1.84	< 1.84	1.84	OSV

bcpg-jdk15

Branch	Affected	Fixed in	Source
1.46	≤ 1.46	no fix published	OSV

4 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

CVE-2026-3505 Red Hat Product Security818 products fixed · 10 known affected
bouncycastle: BC-JAVA: unbounded PGP AEAD chunk size leads to pre-auth resource exhaustion
jenkins-2-plugins.src as a component of OpenShift Developer Tools and Services · jenkins.src as a component of OpenShift Developer Tools and Services · bcpg-jdk18on as a component of Red Hat build of Apache Camel 4 for Quarkus 3 · +7 more
RHSA-2026:76128 Red Hat Product Security3 products fixed
Red Hat Security Advisory: Red Hat Single Sign-On 7.6.13 security update on RHEL 7
RHSA-2026:76130 Red Hat Product Security3 products fixed
Red Hat Security Advisory: Red Hat Single Sign-On 7.6.13 security update on RHEL 9
RHSA-2026:76129 Red Hat Product Security3 products fixed
Red Hat Security Advisory: Red Hat Single Sign-On 7.6.13 security update on RHEL 8
RHSA-2026:76134 Red Hat Product Security3 products fixed
Red Hat Security Advisory: Red Hat Single Sign-On 7.6.13 for OpenShift image security update
RHSA-2026:76132 Red Hat Product Security1 product fixed
Red Hat Security Advisory: Red Hat Single Sign-On 7.6.13 security update

22 more advisories

Full record on NVD

Fix

Vendor fix Red Hat Product Security RHSA-2026:76128 · 3 productsBefore applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
Vendor fix Red Hat Product Security RHSA-2026:76134 · 3 productsBefore applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
Vendor fix Red Hat Product Security RHSA-2026:76132 · 1 productBefore applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on. The References section of this erratum contains a download link (you must log in to download the update).
Vendor fix Red Hat Product Security RHSA-2026:70277 · 2 productsBefore applying the update, make sure all previously released errata relevant to your system have been applied. Also, back up your existing installation, including all applications, configuration files, databases and database settings. For details on how to apply this update, refer to: https://acce…
Vendor fix Red Hat Product Security RHSA-2026:60259 · 4 productsIt is recommended that existing users of Red Hat OpenShift Developer Tools - OpenShift Jenkins 4.20 upgrade to the latest. This image uses java-21-openjdk as the default JDK. java-25-openjdk is available in rhel9 images. java-17-openjdk is removed.
Vendor fix Red Hat Product Security RHSA-2026:60256 · 4 productsIt is recommended that existing users of Red Hat OpenShift Developer Tools - OpenShift Jenkins 4.22 upgrade to the latest. This image uses java-21-openjdk as the default JDK. java-25-openjdk is available in rhel9 images. java-17-openjdk is removed.

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVE recordread 2026-10-23
CISA-ADPSSVC decisionnone2026-04-15
OpenCVESSVC decisionnone—
CNACVSS 4.08.7read 2026-10-23
CNACVSS 3.17.5read 2026-10-23
CNAweakness (CWE)CWE-400, CWE-770read 2026-10-23
FIRST EPSSEPSS score0.9 %2026-10-22
OSVaffected packages—

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 4.0 vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/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
Published: 2026-04-15
Last Modified: 2026-09-18
NVD status: Awaiting Analysis

Frequently asked questions

What is CVE-2026-3505?

Is CVE-2026-3505 actively exploited?

Active exploitation of CVE-2026-3505 has not been confirmed. Its EPSS score was 0.9% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-3505?

CVE-2026-3505 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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