Bazel 5 · Version Status
Bazel 5 End of Life Date
Bazel 5 end-of-life date, support status, and CVE risk. Data reconciled from official vendor documentation and endoflife.date at every build; the source of each date is on the product page.
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Bazel 5 is past end of life. This version no longer receives security patches. 645 days past EOL — migrate to a supported version immediately.
EOL Date
Jan 31, 2025
645 days past EOL
Latest Release
5.4.1
LTS release
Release Date
Jan 19, 2022
Bazel 5 series
Where these dates come from
End of lifeJan 31, 2025endoflife.date (open dataset) · endoflife.datemedium · 1 source agrees End of active supportDec 19, 2022endoflife.date (open dataset) · endoflife.datemedium · 1 source agrees ReleaseJan 19, 2022endoflife.date (open dataset) · endoflife.datemedium · 1 source agrees Confidence: high = two or more independent sources agree (the vendor's page read by our adapter, a person's check against the vendor, the dataset the date came from); medium = one; low = the vendor page disagrees or our last read is stale.
How we source dates.
Lifecycle detail
Bazel 5 was released on January 19, 2022 and support ended on January 31, 2025 — a supported lifespan of 3 years, in line with the 3 years median for Bazel LTS releases. It was a long-term support (LTS) release, so it received a longer patch window than the interim releases around it. Its latest release on record is 5.4.1, published April 19, 2023 — 1 year and 10 months before support ended. It has been past its end-of-life date for 1 year and 9 months. 1 newer Bazel release has shipped since.
Attack Surface
10/30 Medium tier
CISA KEV Exposure
0/20 Not in KEV
Extended Support
0/10 Available
EOL Risk Score™ — proprietary methodology by endoflife.ai. Factors: EOL recency, attack surface breadth, CISA KEV catalog presence, extended support availability. Updated at every build.
Methodology → ·
View score card →
Extended Support
Extended Bazel 5 support options
Some vendors and third parties sell security patches beyond end of life; whether one covers this version varies. Compare your options.
Compare Options →
| Version | Latest | EOL Date | Status |
|---|
| 4 LTS |
4.2.4 |
Jan 31, 2024 |
EOL |
| → 5 LTS |
5.4.1 |
Jan 31, 2025 |
EOL |
| 6 LTS |
6.6.0 |
Dec 31, 2025 |
EOL |
| 7 LTS |
7.7.2 |
Dec 31, 2026 |
Warning |
| 8 LTS |
8.8.2 |
Dec 31, 2027 |
Active |
| 9 LTS |
9.3.2 |
Dec 31, 2028 |
Active |
What does Bazel 5 end of life mean?
When Bazel 5 reaches end of life, the maintainers stop issuing security patches for this version. CVEs discovered after the EOL date are publicly disclosed on the National Vulnerability Database with no patch available. Exploit code frequently appears on GitHub within days of disclosure.
The CVE blind spot: A CVE-based scan does not show the ongoing accumulation of unpatched vulnerabilities in EOL software versions. Some scanners flag unsupported versions of common products, but coverage varies, and none of them give you the date in advance. Running Bazel 5 past its EOL date creates a growing attack surface that a clean scan result does not rule out.
Migrate to Bazel 9 or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.
Frequently Asked Questions
When does Bazel 5 reach end of life?
Bazel 5 reached end of life on January 31, 2025. This version is no longer receiving security patches.
Is Bazel 5 still supported?
No. Bazel 5 reached end of life on January 31, 2025 and is no longer receiving security patches.
What should I upgrade to from Bazel 5?
The recommended upgrade from Bazel 5 is
Bazel 9 — the latest actively supported version. Check the
Bazel full timeline for all supported versions.
What are the security risks of running Bazel 5 past EOL?
Since Bazel 5 reached end of life, the maintainers no longer issue security patches. Any CVEs disclosed after the EOL date accumulate with no vendor fix. A CVE-based scan does not show this — it is the CVE blind spot; some scanners flag unsupported versions of common products, but coverage varies and none give the date in advance. Organizations running EOL Bazel should migrate immediately or implement compensating controls.