8.7

CVE-2026-3505: Unbounded PGP AEAD chunk size leads to pre-auth resource exhaustion.

Awaiting analysis
AliasesUBUNTU-CVE-2026-3505DEBIAN-CVE-2026-3505CGA-2cfh-jjx8-56r5
Published 15-04-2026Last modified 18-09-2026

Vulnerability summary

CVE-2026-3505 is a high (CVSS 8.7) Uncontrolled Resource Consumption vulnerability in legion of the bouncy castle inc. bc-java. EPSS estimates a 0.79% chance of exploitation in the next 30 days, higher than 56.1% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 8.7 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 1% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
8.7/10
010
High · v4.0 (CVE.org)
EPSS score
0.79%
0%100%
Low · -0.09 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 12 · Related 2
OPENSUSE-SU-2026:10571-1RHSA-2026:18054RHSA-2026:18055RHSA-2026:53644RHSA-2026:53645RHSA-2026:53646

Timeline

  1. 15-04-2026
    PublishedVulnerability first disclosed.
  2. 18-09-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

10 scores · 7 sources · 2 versions

EPSS trend

Probability

0.79%

Chance of exploitation in the next 30 days

Percentile

56%

Versus all other CVEs

30-day change

Decrease -0.09 pp

From 0.88% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Chainguard164 products
  • apache-nifi< 2.9.0-r1
  • apache-nifi-registry< 2.9.0-r2
  • apache-nifi-registry-toolkit< 2.9.0-r2
  • eco-java-gradle-1.11All versions (No fix recorded)
  • eco-java-gradle-2.0All versions (No fix recorded)
Wolfi10 products
  • apache-nifi< 2.9.0-r1
  • apache-nifi-registry< 2.9.0-r2
  • apache-nifi-registry-toolkit< 2.9.0-r2
  • gradle-8< 8.14.4-r4
  • gradle-9< 9.4.1-r2
Org.bouncycastle7 products
  • bcpg-jdk12≤ 130
  • bcpg-jdk14< 1.84
  • bcpg-jdk15≤ 1.46
  • bcpg-jdk15on≤ 1.70
  • bcpg-jdk15to18< 1.84
Debian1 product
  • bouncycastleAll versions (No fix recorded) | < 1.86-1
Legion of the bouncy castle inc.1 product
  • bc-java≥ 1.74, < 1.80.2 | ≥ 1.81, < 1.81.1 | ≥ 1.82, < 1.84
Ubuntu1 product
  • bouncycastleAll versions (No fix recorded)

6 vendors · 184 products

References

32 links
Show all 32 references