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fix: bump Zulu to 11.0.33 / 21.0.13 for eMudhra blocklist (CVE-2026-91403) #56

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Merged
aaron-steinfeld merged 1 commit into from
Oct 24, 2026
Merged

fix: bump Zulu to 11.0.33 / 21.0.13 for eMudhra blocklist (CVE-2026-91403) #56

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32 changes: 30 additions & 2 deletions java-11/Dockerfile
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Original file line number Diff line number Diff line change
@@ -1,9 +1,33 @@
# Zulu build name, e.g. zulu11.54.107-ca-jdk11.0.13 (see java.version)
ARG JAVA_VERSION
ARG BASE_IMAGE
FROM azul/zulu-openjdk-debian:${JAVA_VERSION} AS jre
# The azul/zulu-openjdk-debian image has no tag with the eMudhra blocked.certs fix yet, so fetch the
# Zulu CA build straight from Azul's CDN. The SHA-256 pins the download. jlink copies blocked.certs
# from the JDK it runs, so it must be the fixed one.
# TEMP: go back to azul/zulu-openjdk-debian once it publishes a tag with the fix.
FROM debian:bookworm-slim AS jre
ARG JAVA_VERSION
ARG TARGETARCH
# Update these together with java.version.
ARG ZULU_SHA256_AMD64=64658a2be5140c2ffd571c0e09ac3b505a2be0d4654e09957b584b54b4dac8b5
ARG ZULU_SHA256_ARM64=abed984a694d4da40662ec0bdfd2ecbe798bab1b8ce784d4f02d00479d53e802

# Needed for --strip-debug
RUN apt-get -y update && apt-get -y upgrade libssl3 && apt-get -y install binutils
RUN apt-get -y update && apt-get -y upgrade libssl3 && apt-get -y install binutils curl ca-certificates

RUN case "${TARGETARCH}" in \
amd64) ZULU_ARCH=x64; ZULU_SHA256="${ZULU_SHA256_AMD64}" ;; \
arm64) ZULU_ARCH=aarch64; ZULU_SHA256="${ZULU_SHA256_ARM64}" ;; \
*) echo "unsupported arch ${TARGETARCH}" >&2; exit 1 ;; \
esac \
&& curl -fsSL -o /tmp/zulu.tar.gz "https://cdn.azul.com/zulu/bin/${JAVA_VERSION}-linux_${ZULU_ARCH}.tar.gz" \
&& echo "${ZULU_SHA256} /tmp/zulu.tar.gz" | sha256sum -c - \
&& mkdir -p /usr/lib/jvm \
&& tar -xzf /tmp/zulu.tar.gz -C /usr/lib/jvm \
&& ln -s "/usr/lib/jvm/${JAVA_VERSION}-linux_${ZULU_ARCH}" /usr/lib/jvm/zulu \
&& rm /tmp/zulu.tar.gz
ENV JAVA_HOME=/usr/lib/jvm/zulu
ENV PATH=${JAVA_HOME}/bin:${PATH}

# Included modules cherrypicked from https://docs.oracle.com/en/java/javase/11/docs/api/
#
Expand Down Expand Up @@ -44,6 +68,10 @@ java.net.http,\
jdk.zipfs\
--output jre

# Fail the build if the fixed blocklist did not make it through jlink.
# 7BA62FEC... is one of the fingerprints added by the 2026-10-21 out-of-cycle release.
RUN grep -q 7BA62FEC54E9D040556FCA70A6A88F03761C178FA1F7CB8390A73076849F55A2 /jre/lib/security/blocked.certs

# Extract java SSL certs
FROM gcr.io/distroless/java-base-debian12:debug AS ssl

Expand Down
2 changes: 1 addition & 1 deletion java-11/java.version
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Original file line number Diff line number Diff line change
@@ -1 +1 @@
11.0.32.1-11.90
zulu11.92.109-ca-jdk11.0.33
32 changes: 30 additions & 2 deletions java-21/Dockerfile
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Original file line number Diff line number Diff line change
@@ -1,9 +1,33 @@
# Zulu build name, e.g. zulu21.54.107-ca-jdk21.0.13 (see java.version)
ARG JAVA_VERSION
ARG BASE_IMAGE
FROM azul/zulu-openjdk-debian:${JAVA_VERSION} AS jre
# The azul/zulu-openjdk-debian image has no tag with the eMudhra blocked.certs fix yet, so fetch the
# Zulu CA build straight from Azul's CDN. The SHA-256 pins the download. jlink copies blocked.certs
# from the JDK it runs, so it must be the fixed one.
# TEMP: go back to azul/zulu-openjdk-debian once it publishes a tag with the fix.
FROM debian:bookworm-slim AS jre
ARG JAVA_VERSION
ARG TARGETARCH
# Update these together with java.version.
ARG ZULU_SHA256_AMD64=dd8cf0628cfb8c369b7d4fe96783e2b516482b37d2b3e140b208c91deabf1169
ARG ZULU_SHA256_ARM64=783460592bc66c9290b14c32a537b29da812bd62ad53bf6cb565355bca7ea563

# Needed for --strip-debug
RUN apt-get -y update && apt-get -y upgrade libssl3 && apt-get -y install binutils
RUN apt-get -y update && apt-get -y upgrade libssl3 && apt-get -y install binutils curl ca-certificates

RUN case "${TARGETARCH}" in \
amd64) ZULU_ARCH=x64; ZULU_SHA256="${ZULU_SHA256_AMD64}" ;; \
arm64) ZULU_ARCH=aarch64; ZULU_SHA256="${ZULU_SHA256_ARM64}" ;; \
*) echo "unsupported arch ${TARGETARCH}" >&2; exit 1 ;; \
esac \
&& curl -fsSL -o /tmp/zulu.tar.gz "https://cdn.azul.com/zulu/bin/${JAVA_VERSION}-linux_${ZULU_ARCH}.tar.gz" \
&& echo "${ZULU_SHA256} /tmp/zulu.tar.gz" | sha256sum -c - \
&& mkdir -p /usr/lib/jvm \
&& tar -xzf /tmp/zulu.tar.gz -C /usr/lib/jvm \
&& ln -s "/usr/lib/jvm/${JAVA_VERSION}-linux_${ZULU_ARCH}" /usr/lib/jvm/zulu \
&& rm /tmp/zulu.tar.gz
ENV JAVA_HOME=/usr/lib/jvm/zulu
ENV PATH=${JAVA_HOME}/bin:${PATH}

# Included modules cherrypicked from https://docs.oracle.com/en/java/javase/21/docs/api/
#
Expand Down Expand Up @@ -44,6 +68,10 @@ java.net.http,\
jdk.zipfs\
--output jre

# Fail the build if the fixed blocklist did not make it through jlink.
# 7BA62FEC... is one of the fingerprints added by the 2026-10-21 out-of-cycle release.
RUN grep -q 7BA62FEC54E9D040556FCA70A6A88F03761C178FA1F7CB8390A73076849F55A2 /jre/lib/security/blocked.certs

# Extract java SSL certs
FROM gcr.io/distroless/java-base-debian12:debug AS ssl

Expand Down
2 changes: 1 addition & 1 deletion java-21/java.version
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Original file line number Diff line number Diff line change
@@ -1 +1 @@
21.0.12.1-21.52
zulu21.54.107-ca-jdk21.0.13
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