7.5

CVE-2023-1428: Denial-of-Service in gRPC

Modified
AliasesGHSA-6628-q6j9-w8vgPYSEC-2026-1425UBUNTU-CVE-2023-1428
Published 09-06-2023Last modified 26-09-2024

Vulnerability summary

CVE-2023-1428 is a high (CVSS 7.5) Reachable Assertion vulnerability in google grpc. EPSS estimates a 0.41% chance of exploitation in the next 30 days, higher than 35% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 7.5 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 0% (FIRST, 04-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.41%
0%100%
Low · 0.00 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 1 · Related 3
RHSA-2024:10761CGA-7MRF-F5V6-GP6FCGA-PM82-388J-GPH8CGA-W2Q6-VJQ6-XV28

Timeline

  1. 09-06-2023
    PublishedVulnerability first disclosed.
  2. 26-09-2024
    Last modifiedVulnerability information updated.

Description

There exists an vulnerability causing an abort() to be called in gRPC. The following headers cause gRPC's C++ implementation to abort() when called via http2: te: x (x != trailers) :scheme: x (x != http, https) grpclb_client_stats: x (x == anything) On top of sending one of those headers, a later header must be sent that gets the total header size past 8KB. We recommend upgrading past git commit 2485fa94bd8a723e5c977d55a3ce10b301b437f8 or v1.53 and above.

CVSS metrics

8 scores · 8 sources · 1 version

EPSS trend

Probability

0.41%

Chance of exploitation in the next 30 days

Percentile

35%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.41% on 05-10-2026

05-10-202604-11-2026

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.

Chainguard1 product
  • wavefront-proxy< 13.4-r1
Google1 product
  • grpc≥ 1.51, < 1.53
Grpc1 product
  • grpc≥ 1.51.0, < 1.53.0
Io.grpc1 product
  • grpc-protobuf≥ 1.51.0, < 1.53.0
PyPI1 product
  • grpcio≥ 1.51.0, < 1.53.0
RubyGems1 product
  • grpc≥ 1.51.0, < 1.53.0
Ubuntu1 product
  • grpcAll versions (No fix recorded)
Wolfi1 product
  • wavefront-proxy< 13.4-r1

8 vendors · 8 products

References

10 links