PT-2021-7857 · Google+6 · Protobuf-Java+6

Published 2021-09-26 · Updated 2026-05-18 · CVE-2021-22569

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions protobuf-java (affected versions not specified)

Description The issue is related to the incorrect order of actions in the Protobuf data serialization protocol analysis component. This allows a remote attacker to cause a denial of service. A small malicious payload can occupy the parser for several minutes by creating large numbers of short-lived objects that cause frequent, repeated pauses.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Weakness Enumeration

CWE-696

Related Identifiers

ALT-PU-2023-1230

AZL-41431

BDU:2023-03823

CLEANSTART-2026-JU62349

CLEANSTART-2026-SQ91016

CLEANSTART-2026-SV95049

CLEANSTART-2026-WK99982

CVE-2021-22569

DLA-3393-1

GHSA-WRVW-HG22-4M67

OESA-2022-1694

OPENSUSE-SU-2022_3922-1

SUSE-SU-2022:3922-1

SUSE-SU-2022_3922-1

SUSE-SU-2023:2783-1

SUSE-SU-2023:2783-2

USN-5945-1

Affected Products

Alt Linux

Astra Linux

Jira Service Management Server

Linuxmint

Suse

Ubuntu

Protobuf-Java

References · 207

• 🔥 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=39330 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2022-3510 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-40167 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-42583 · Security Note
• https://osv.dev/vulnerability/GHSA-wrvw-hg22-4m67 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-3171 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-2047 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-24970 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-36479 · Security Note
• https://cve.org/CVERecord?id=CVE-2021-22569 · Security Note
• https://wiki.astralinux.ru/astra-linux-se17-bulletin-2023-0630SE17MD · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-5588 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-44981 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-58057 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2024-6763 · Security Note