Skip to content
Fencer Vulns
high 8.1

CVE-2022-22576 json

An improper authentication vulnerability exists in curl 7.33.0 to and including 7.82.0 which might allow reuse OAUTH2-authenticated connect…

published 2022-05-26 4 y ago modified 2026-10-14 25 d ago also EUVD-2022-27722 , JLSEC-2026-385

cvss
8.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.5%
EPSS 2.5% chance of exploitation in 30 days, percentile 84%
public exploits
0
none known

Summary

An improper authentication vulnerability exists in curl 7.33.0 to and including 7.82.0 which might allow reuse OAUTH2-authenticated connections without properly making sure that the connection was authenticated with the same credentials as set for this transfer. This affects SASL-enabled protocols: SMPTP(S), IMAP(S), POP3(S) and LDAP(S) (openldap only).

Patch / fix

  • julia CURL_jll 8.5.0+0
  • julia LibCURL_jll 7.83.1+0
  • Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP V3.1.5
  • Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP V3.1.5
  • Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP V3.1.5
  • curl Debian 14, Debian 13, Debian 12 7.83.0-1

debian advisories DEBIAN-CVE-2022-22576

  • curl Ubuntu 18.04 LTS 7.58.0-2ubuntu3.17
  • curl Ubuntu 20.04 LTS 7.68.0-1ubuntu2.10
  • curl Ubuntu 22.04 LTS 7.81.0-1ubuntu1.1

ubuntu advisories UBUNTU-CVE-2022-22576

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • curl RHEL 9 7.76.1-14.el9_0.4
  • libcurl RHEL 9 7.76.1-14.el9_0.4
  • curl-minimal RHEL 9 7.76.1-14.el9_0.4
  • libcurl-minimal RHEL 9 7.76.1-14.el9_0.4
  • curl RHEL 8 7.61.1-22.el8_6.3
  • libcurl RHEL 8 7.61.1-22.el8_6.3
  • libcurl-minimal RHEL 8 7.61.1-22.el8_6.3

red hat advisories RHSA-2022:5245RHSA-2022:5313

  • curl SLES for SAP 12 SP5, SLES 12 SP5, SLE Software Development Kit 12 SP5 7.60.0-11.37.1
  • curl SLE Module for Basesystem 15 SP3, SLE Micro 5.2, SLE Micro 5.1 +1 more 7.66.0-150200.4.30.1

suse advisories SUSE-SU-2022:1680-1SUSE-SU-2022:1657-1

  • curl openSUSE Tumbleweed 7.83.0-1.1

opensuse advisories openSUSE-SU-2024:12028-1

  • curl AlmaLinux 8 7.61.1-22.el8_6.3
  • libcurl AlmaLinux 8 7.61.1-22.el8_6.3
  • libcurl-minimal AlmaLinux 8 7.61.1-22.el8_6.3

almalinux advisories ALSA-2022:5313

  • curl Rocky Linux 8 7.61.1-22.el8_6.3

rocky linux advisories RLSA-2022:5313

  • curl Alpine 3.14, Alpine 3.13, Alpine 3.12 7.79.1-r1
  • curl Alpine 3.15 7.80.0-r1
  • curl Alpine 3.24, Alpine 3.23, Alpine 3.22 +6 more 7.83.0-r0

alpine advisories ALPINE-CVE-2022-22576

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • curl Arch Linux 7.83.0-1

arch linux advisories AVG-2685

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2022-22576 updated cvss 8.1

curl: OAUTH2 bearer bypass in connection re-use

  • Red Hat .NET Core 3.1 on Red Hat Enterprise Linux rh-dotnet31-curl, rh-dotnet31-libcurl
    affected: no fix planned “Out of support scope”
  • Red Hat Software Collections httpd24-curl, httpd24-libcurl
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux AppStream (v. 9) libcurl-devel 7.76.1-14.el9_0.4, curl-debuginfo 7.76.1-14.el9_0.4, curl-debugsource 7.76.1-14.el9_0.4, libcurl-debuginfo 7.76.1-14.el9_0.4, curl-minimal-debuginfo 7.76.1-14.el9_0.4, libcurl-minimal-debuginfo 7.76.1-14.el9_0.4
    fixed: vendor fix RHSA-2022:5245
  • Red Hat Enterprise Linux BaseOS (v. 8) curl 7.61.1-22.el8_6.3, libcurl 7.61.1-22.el8_6.3, libcurl-minimal 7.61.1-22.el8_6.3
    fixed: vendor fix RHSA-2022:5313
  • Red Hat Enterprise Linux BaseOS (v. 9) curl 7.76.1-14.el9_0.4, libcurl 7.76.1-14.el9_0.4, curl-minimal 7.76.1-14.el9_0.4, libcurl-minimal 7.76.1-14.el9_0.4
    fixed: vendor fix RHSA-2022:5245
  • Red Hat Enterprise Linux 6 curl, libcurl Red Hat Enterprise Linux 7 curl, libcurl Red Hat JBoss Core Services jbcs-httpd24-curl jbcs-httpd24-curl
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-23-348-10 updated cvss 8.1

Siemens SIMATIC S7-1500

  • Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0) >= 3.1.0, < 3.1.5 Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0) >= 3.1.0, < 3.1.5 Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0) >= 3.1.0, < 3.1.5 Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0) >= 3.1.0, < 3.1.5 Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0) >= 3.1.0, < 3.1.5
    affected: fixed in V3.1.5, mitigation support.industry.siemens.com

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

cisa ICSA-23-194-01 updated cvss 8.1

Siemens RUGGEDCOM ROX

  • Siemens RUGGEDCOM ROX MX5000 <V2.16.0 Siemens RUGGEDCOM ROX MX5000RE <V2.16.0 Siemens RUGGEDCOM ROX RX1400 <V2.16.0 Siemens RUGGEDCOM ROX RX1500 <V2.16.0 Siemens RUGGEDCOM ROX RX1501 <V2.16.0 Siemens RUGGEDCOM ROX RX1510 <V2.16.0
    +5 more products
    Siemens RUGGEDCOM ROX RX1511 <V2.16.0 Siemens RUGGEDCOM ROX RX1512 <V2.16.0 Siemens RUGGEDCOM ROX RX1524 <V2.16.0 Siemens RUGGEDCOM ROX RX1536 <V2.16.0 Siemens RUGGEDCOM ROX RX5000 <V2.16.0
    affected: fixed in V2.16.0 support.industry.siemens.com

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
total
Assessed
6 mo ago

Exploit prediction

2.52% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • hackerone.com https://hackerone.com/reports/1526328 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
NVD 3.1 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CNA 3.1 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
NVD 2.0 5.5 AV:N/AC:L/Au:S/C:P/I:P/A:N
OSV 3.1 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Affected packages

ecosystem package affected fixed in
julia CURL_jll
<8.5.0+0
8.5.0+0
julia LibCURL_jll
<7.83.1+0
7.83.1+0

Affected products

  • n/a https://github.com/curl/curl
  • Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP
  • Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP
  • Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP

Classification

Weakness
  • CWE-287 Improper Authentication
  • CWE-306 Missing Authentication for Critical Functionality

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.