CVE-2020-26939

unknown

Published 2021-04-22 · Modified 2025-07-17

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CVSS v3

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CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS v4 NEW

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not yet in upstream

VIR risk

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Description

Observable Differences in Behavior to Error Inputs in Bouncy Castle

Predictions

Exploit likelihood

30%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

Debian Fixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`1.61-1`
sid	Fixed	`1.61-1`
forky	Fixed	`1.61-1`
bullseye	Fixed	`1.61-1`
bookworm	Fixed	`1.61-1`

Package impact

Ecosystem	Package	Vulnerable	Fixed
Maven	org.bouncycastle:bcprov-jdk14	`<1.61`	`1.61`
Maven	org.bouncycastle:bcprov-jdk15	`<1.61`	`1.61`
Maven	org.bouncycastle:bcprov-jdk16	`<1.61`	`1.61`
Maven	org.bouncycastle:bc-fips	`<1.0.2`	`1.0.2`
Maven	org.bouncycastle:bcprov-ext-jdk15on	`<1.61`	`1.61`
Maven	org.bouncycastle:bcprov-ext-jdk16	`<1.61`	`1.61`
Maven	org.bouncycastle:bcprov-jdk15on	`<1.61`	`1.61`
Maven	org.bouncycastle:bcprov-jdk15to18	`<1.61`	`1.61`

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.