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TI-2026-03272 Aliases CVE-2026-3783GHSA-8whr-249c-vfjp

token leak with redirect and netrc

Priority MEDIUM 63CWE-522Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
Partial Red Hat: 16 fixed, 11 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-522.

Summary

When an OAuth2 bearer token is used for an HTTP(S) transfer, and that transfer performs a redirect to a second URL, curl could leak that token to the second hostname under some circumstances. If the hostname that the first request is redirected to has information in the used .netrc file, with either of the `machine` or `default` keywords, curl would pass on the bearer token set for the first host also to the second one.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00495 42nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial curl (curl): 8.14.2, 8.16.1, 8.19.0Red Hat: 29 advisoriesRed Hat: 16 fixed, 11 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
curlcurl7.33.0 to before 8.14.2; 8.15.0 to before 8.16.1; 8.17.0 to before 8.19.08.14.2, 8.16.1, 8.19.0Patch availableCNA
curlcurl8.18.0; 8.17.0; 8.16.0; 8.15.0; 8.14.1; 8.14.0; 8.13.0; 8.12.1; 8.12.0; 8.11.1; 8.11.0; 8.10.1; 8.10.0; 8.9.1; 8.9.0; 8.8.0; 8.7.1; 8.7.0; 8.6.0; 8.5.0; 8.4.0; 8.3.0; 8.2.1; 8.2.0; 8.1.2; 8.1.1; 8.1.0; 8.0.1; 8.0.0; 7.88.1; 7.88.0; 7.87.0; 7.86.0; 7.85.0; 7.84.0; 7.83.1; 7.83.0; 7.82.0; 7.81.0; 7.80.0; 7.79.1; 7.79.0; 7.78.0; 7.77.0; 7.76.1; 7.76.0; 7.75.0; 7.74.0; 7.73.0; 7.72.0; 7.71.1; 7.71.0; 7.70.0; 7.69.1; 7.69.0; 7.68.0; 7.67.0; 7.66.0; 7.65.3; 7.65.2; 7.65.1; 7.65.0; 7.64.1; 7.64.0; 7.63.0; 7.62.0; 7.61.1; 7.61.0; 7.60.0; 7.59.0; 7.58.0; 7.57.0; 7.56.1; 7.56.0; 7.55.1; 7.55.0; 7.54.1; 7.54.0; 7.53.1; 7.53.0; 7.52.1; 7.52.0; 7.51.0; 7.50.3; 7.50.2; 7.50.1; 7.50.0; 7.49.1; 7.49.0; 7.48.0; 7.47.1; 7.47.0; 7.46.0; 7.45.0; 7.44.0; 7.43.0; 7.42.1; 7.42.0; 7.41.0; 7.40.0; 7.39.0; 7.38.0; 7.37.1; 7.37.0; 7.36.0; 7.35.0; 7.34.0; 7.33.0—No fix listedCNA
  • curl Vendorcurl Affected 7.33.0 to before 8.14.2; 8.15.0 to before 8.16.1; 8.17.0 to before 8.19.0 Fixed in 8.14.2, 8.16.1, 8.19.0 Patch available CNA
  • curl Vendorcurl Affected 8.18.0; 8.17.0; 8.16.0; 8.15.0; 8.14.1; 8.14.0; 8.13.0; 8.12.1; 8.12.0; 8.11.1; 8.11.0; 8.10.1; 8.10.0; 8.9.1; 8.9.0; 8.8.0; 8.7.1; 8.7.0; 8.6.0; 8.5.0; 8.4.0; 8.3.0; 8.2.1; 8.2.0; 8.1.2; 8.1.1; 8.1.0; 8.0.1; 8.0.0; 7.88.1; 7.88.0; 7.87.0; 7.86.0; 7.85.0; 7.84.0; 7.83.1; 7.83.0; 7.82.0; 7.81.0; 7.80.0; 7.79.1; 7.79.0; 7.78.0; 7.77.0; 7.76.1; 7.76.0; 7.75.0; 7.74.0; 7.73.0; 7.72.0; 7.71.1; 7.71.0; 7.70.0; 7.69.1; 7.69.0; 7.68.0; 7.67.0; 7.66.0; 7.65.3; 7.65.2; 7.65.1; 7.65.0; 7.64.1; 7.64.0; 7.63.0; 7.62.0; 7.61.1; 7.61.0; 7.60.0; 7.59.0; 7.58.0; 7.57.0; 7.56.1; 7.56.0; 7.55.1; 7.55.0; 7.54.1; 7.54.0; 7.53.1; 7.53.0; 7.52.1; 7.52.0; 7.51.0; 7.50.3; 7.50.2; 7.50.1; 7.50.0; 7.49.1; 7.49.0; 7.48.0; 7.47.1; 7.47.0; 7.46.0; 7.45.0; 7.44.0; 7.43.0; 7.42.1; 7.42.0; 7.41.0; 7.40.0; 7.39.0; 7.38.0; 7.37.1; 7.37.0; 7.36.0; 7.35.0; 7.34.0; 7.33.0 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*7.33.0 to before 8.19.0VulnerableHaxx
  • cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:* Versions 7.33.0 to before 8.19.0 Vulnerable ·Haxx

Remediation

  • Fix · CNA curl (curl) Fixed in 8.14.2, 8.16.1, 8.19.0

Red Hat 29 advisories

  • RHSA-2026:93454 Released 2026-11-02 · Red Hat rating Important
    curl security update
    • Red Hat Enterprise Linux AppStream EUS (v.9.6) libcurl-devel-7.76.1-31.el9_6.4
    • Red Hat Enterprise Linux BaseOS EUS (v.9.6) curl-7.76.1-31.el9_6.4, curl-minimal-7.76.1-31.el9_6.4, libcurl-7.76.1-31.el9_6.4 +1
  • RHSA-2026:82888 Released 2026-10-14 · Red Hat rating Important
    cert-manager Operator for Red Hat OpenShift 1.17.2
    • Cert Manager support for Red Hat OpenShift release 1.17 registry.redhat.io/cert-manager/cert-manager-operator-bundle
  • RHSA-2026:82857 Released 2026-10-14 · Red Hat rating Important
    cert-manager Operator for Red Hat OpenShift 1.18.2
    • Cert Manager support for Red Hat OpenShift release 1.18 registry.redhat.io/cert-manager/cert-manager-operator-bundle
Show 26 more Red Hat advisories
  • RHSA-2026:82372 Released 2026-10-13 · Red Hat rating Important
    cert-manager Operator for Red Hat OpenShift 1.18.2
    • Cert Manager support for Red Hat OpenShift release 1.18 registry.redhat.io/cert-manager/cert-manager-operator-rhel9
  • RHSA-2026:82354 Released 2026-10-13 · Red Hat rating Important
    cert-manager Operator for Red Hat OpenShift 1.18.2
    • Cert Manager support for Red Hat OpenShift release 1.18 registry.redhat.io/cert-manager/cert-manager-istio-csr-rhel9
  • RHSA-2026:82347 Released 2026-10-13 · Red Hat rating Important
    cert-manager Operator for Red Hat OpenShift 1.18.2
    • Cert Manager support for Red Hat OpenShift release 1.18 registry.redhat.io/cert-manager/jetstack-cert-manager-acmesolver-rhel9, registry.redhat.io/cert-manager/jetstack-cert-manager-rhel9
  • RHSA-2026:82336 Released 2026-10-13 · Red Hat rating Important
    cert-manager Operator for Red Hat OpenShift 1.17.1
    • Cert Manager support for Red Hat OpenShift release 1.17 registry.redhat.io/cert-manager/cert-manager-istio-csr-rhel9
  • RHSA-2026:82322 Released 2026-10-13 · Red Hat rating Important
    cert-manager Operator for Red Hat OpenShift 1.17.2
    • Cert Manager support for Red Hat OpenShift release 1.17 registry.redhat.io/cert-manager/cert-manager-operator-rhel9
  • RHSA-2026:82304 Released 2026-10-13 · Red Hat rating Important
    cert-manager Operator for Red Hat OpenShift 1.17.2
    • Cert Manager support for Red Hat OpenShift release 1.17 registry.redhat.io/cert-manager/jetstack-cert-manager-acmesolver-rhel9, registry.redhat.io/cert-manager/jetstack-cert-manager-rhel9
  • RHSA-2026:77255 Released 2026-10-07 · Red Hat rating Moderate
    Red Hat Hardened Images RPMs bug fix and enhancement update
    • Red Hat Hardened Images curl-8.22.0-1.1.hum1@aarch64, curl-8.22.0-1.1.hum1@s390x, curl-8.22.0-1.1.hum1@src +10
  • RHSA-2026:72506 Released 2026-09-28 · Red Hat rating Important
    curl security update
    • Red Hat Enterprise Linux AppStream EUS (v. 10.0) libcurl-devel-8.12.1-1.el10_0.10
    • Red Hat Enterprise Linux BaseOS EUS (v. 10.0) curl-8.12.1-1.el10_0.10, libcurl-8.12.1-1.el10_0.10, libcurl-minimal-8.12.1-1.el10_0.10
  • RHSA-2026:72502 Released 2026-09-28 · Red Hat rating Important
    cert-manager Operator for Red Hat OpenShift 1.20.1
    • Cert Manager support for Red Hat OpenShift release 1.20 registry.redhat.io/cert-manager/cert-manager-trust-manager-rhel9
  • RHSA-2026:72476 Released 2026-09-28 · Red Hat rating Important
    cert-manager Operator for Red Hat OpenShift 1.20.1
    • Cert Manager support for Red Hat OpenShift release 1.20 registry.redhat.io/cert-manager/cert-manager-operator-rhel9
  • RHSA-2026:72475 Released 2026-09-28 · Red Hat rating Important
    cert-manager Operator for Red Hat OpenShift 1.20.1
    • Cert Manager support for Red Hat OpenShift release 1.20 registry.redhat.io/cert-manager/cert-manager-istio-csr-rhel9
  • RHSA-2026:72470 Released 2026-09-28 · Red Hat rating Important
    cert-manager Operator for Red Hat OpenShift 1.20.1
    • Cert Manager support for Red Hat OpenShift release 1.20 registry.redhat.io/cert-manager/jetstack-cert-manager-acmesolver-rhel9, registry.redhat.io/cert-manager/jetstack-cert-manager-rhel9
  • RHSA-2026:72399 Released 2026-09-28 · Red Hat rating Important
    cert-manager Operator for Red Hat OpenShift 1.20.1
    • Cert Manager support for Red Hat OpenShift release 1.20 registry.redhat.io/cert-manager/cert-manager-operator-rhel9
  • RHSA-2026:72395 Released 2026-09-28 · Red Hat rating Important
    cert-manager Operator for Red Hat OpenShift 1.20.1
    • Cert Manager support for Red Hat OpenShift release 1.20 registry.redhat.io/cert-manager/cert-manager-istio-csr-rhel9
  • RHSA-2026:72394 Released 2026-09-28 · Red Hat rating Important
    cert-manager Operator for Red Hat OpenShift 1.20.1
    • Cert Manager support for Red Hat OpenShift release 1.20 registry.redhat.io/cert-manager/jetstack-cert-manager-rhel9
  • RHSA-2026:66018 Released 2026-09-09 · Red Hat rating Important
    Red Hat Update Infrastructure 5.3 security update
    • Red Hat Update Infrastructure 5 registry.redhat.io/rhui5/cds-kubernetes-rhel9, registry.redhat.io/rhui5/cds-rhel9, registry.redhat.io/rhui5/haproxy-rhel9 +2
  • RHSA-2026:63140 Released 2026-09-03 · Red Hat rating Important
    cert-manager Operator for Red Hat OpenShift 1.19.2
    • Cert Manager support for Red Hat OpenShift release 1.19 registry.redhat.io/cert-manager/cert-manager-istio-csr-rhel9
  • RHSA-2026:63138 Released 2026-09-03 · Red Hat rating Important
    cert-manager Operator for Red Hat OpenShift 1.19.2
    • Cert Manager support for Red Hat OpenShift release 1.19 registry.redhat.io/cert-manager/jetstack-cert-manager-acmesolver-rhel9, registry.redhat.io/cert-manager/jetstack-cert-manager-rhel9
  • RHSA-2026:63135 Released 2026-09-03 · Red Hat rating Important
    cert-manager Operator for Red Hat OpenShift 1.19.2
    • Cert Manager support for Red Hat OpenShift release 1.19 registry.redhat.io/cert-manager/cert-manager-operator-rhel9
  • RHSA-2026:61783 Released 2026-08-31 · Red Hat rating Important
    A Subscription Management tool for finding and reporting Red Hat product usage
    • Red Hat Discovery 2 registry.redhat.io/discovery/discovery-server-rhel9, registry.redhat.io/discovery/discovery-ui-rhel9
  • RHSA-2026:58981 Released 2026-08-24 · Red Hat rating Critical
    Red Hat Update Infrastructure 5.3 Technology Preview security update
    • Red Hat Update Infrastructure 5 registry.redhat.io/rhui5/cds-kubernetes-tp-rhel9, registry.redhat.io/rhui5/installer-tp-rhel9, registry.redhat.io/rhui5/rhua-tp-rhel9
  • RHSA-2026:56869 Released 2026-08-19 · Red Hat rating Important
    Red Hat JBoss Core Services Apache HTTP Server 2.4.62 SP5 security update
    • Red Hat JBoss Core Services 2.4.62.SP5
  • RHSA-2026:55439 Released 2026-08-17 · Red Hat rating Important
    curl security update
    • Red Hat Enterprise Linux AppStream (v. 9) libcurl-devel-7.76.1-40.el9_8.5
    • Red Hat Enterprise Linux BaseOS (v. 9) curl-7.76.1-40.el9_8.5, curl-minimal-7.76.1-40.el9_8.5, libcurl-7.76.1-40.el9_8.5 +1
  • RHSA-2026:55450 Released 2026-08-17 · Red Hat rating Important
    curl security update
    • Red Hat Enterprise Linux AppStream (v. 10) libcurl-devel-8.12.1-4.el10_2.3
    • Red Hat Enterprise Linux BaseOS (v. 10) curl-8.12.1-4.el10_2.3, libcurl-8.12.1-4.el10_2.3, libcurl-minimal-8.12.1-4.el10_2.3
  • RHSA-2026:7432 Released 2026-04-10 · Red Hat rating Moderate
    Red Hat Hardened Images RPMs bug fix and enhancement update
    • Red Hat Hardened Images curl-8.19.0-3.1.hum1@aarch64, curl-8.19.0-3.1.hum1@src, curl-8.19.0-3.1.hum1@x86_64 +6
  • RHSA-2026:6893 Released 2026-04-07 · Red Hat rating Moderate
    Red Hat Hardened Images RPMs bug fix and enhancement update
    • Red Hat Hardened Images curl-8.19.0-3.hum1@aarch64, curl-8.19.0-3.hum1@src, curl-8.19.0-3.hum1@x86_64 +6

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    curl 8.14.2, 8.16.1, 8.19.0

    4 records Highest priority Priority HIGH 1 HIGH, 1 MEDIUM, 2 LOW

    Other records, highest priority first

    • TI-2026-03294 use after free in SMB connection reusePriority HIGH 72
    • TI-2026-03273 wrong proxy connection reuse with credentialsPriority LOW 35
    • TI-2026-01624 bad reuse of HTTP Negotiate connectionPriority LOW 29
    Show all 4 records →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Confidential Compute AttestationAffectedNo fix yet: Fix deferred
Logging Subsystem for Red Hat OpenShiftAffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 10AffectedNo fix yet
Red Hat Enterprise Linux 6AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 7AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 8AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 9AffectedNo fix yet
Red Hat Enterprise Linux AI (RHEL AI) 3AffectedNo fix yet
Red Hat OpenShift Container Platform 4AffectedNo fix yet: Fix deferred
Red Hat OpenShift Dev SpacesAffectedNo fix yet: Fix deferred
Red Hat Trusted Profile AnalyzerAffectedNo fix yet: Fix deferred
Cert Manager support for Red Hat OpenShift release 1.17Fixed RHSA-2026:82304, RHSA-2026:82322, RHSA-2026:82336, RHSA-2026:82888
Cert Manager support for Red Hat OpenShift release 1.18Fixed RHSA-2026:82347, RHSA-2026:82354, RHSA-2026:82372, RHSA-2026:82857
Cert Manager support for Red Hat OpenShift release 1.19Fixed RHSA-2026:63135, RHSA-2026:63138, RHSA-2026:63140
Cert Manager support for Red Hat OpenShift release 1.20Fixed RHSA-2026:72394, RHSA-2026:72395, RHSA-2026:72399, RHSA-2026:72470, RHSA-2026:72475, RHSA-2026:72476, RHSA-2026:72502
Red Hat Discovery 2Fixed RHSA-2026:61783
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2026:55450
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2026:55439
Red Hat Enterprise Linux AppStream EUS (v. 10.0)Fixed RHSA-2026:72506
Red Hat Enterprise Linux AppStream EUS (v.9.6)Fixed RHSA-2026:93454
Red Hat Enterprise Linux BaseOS (v. 10)Fixed RHSA-2026:55450
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2026:55439
Red Hat Enterprise Linux BaseOS EUS (v. 10.0)Fixed RHSA-2026:72506
Red Hat Enterprise Linux BaseOS EUS (v.9.6)Fixed RHSA-2026:93454
Red Hat Hardened ImagesFixed RHSA-2026:6893, RHSA-2026:7432, RHSA-2026:77255
Red Hat JBoss Core Services 2.4.62.SP5Fixed RHSA-2026:56869
Red Hat Update Infrastructure 5Fixed RHSA-2026:58981, RHSA-2026:66018
Not affected: 5 products
  • Cert Manager support for Red Hat OpenShift release 1.20
  • Red Hat Enterprise Linux 10
  • Red Hat Enterprise Linux 9
  • Red Hat OpenShift AI (RHOAI)
  • Red Hat Update Infrastructure 5

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-3783
  2. 2026-10-03 Alias added: GHSA-8whr-249c-vfjp
  3. 2026-10-09 Fix available: RHSA-2026:56869 · Red Hat
  4. 2026-10-09 Fix available: Red Hat JBoss Core Services 2.4.62.SP5 · Red Hat
  5. 2026-10-12 Fix available: RHSA-2026:77255 · Red Hat
  6. 2026-10-12 Affected versions changed · Red Hat
  7. 2026-10-14 Fix available: RHSA-2026:82304 · Red Hat
  8. 2026-10-14 Fix available: RHSA-2026:82322 · Red Hat
  9. 2026-10-14 Fix available: RHSA-2026:82336 · Red Hat
  10. 2026-10-14 Fix available: RHSA-2026:82372 · Red Hat
  11. 2026-10-14 Fix available: RHSA-2026:82354 · Red Hat
  12. 2026-10-14 Fix available: RHSA-2026:82347 · Red Hat
  13. 2026-10-15 Fix available: RHSA-2026:82857 · Red Hat
  14. 2026-10-15 Fix available: RHSA-2026:82888 · Red Hat
  15. 2026-10-16 Fix available: RHSA-2026:7432 · Red Hat
  16. 2026-10-16 Fix available: Cert Manager support for Red Hat OpenShift release 1.17, Cert Manager support for Red Hat OpenShift release 1.18 · Red Hat
  17. 2026-11-02 Fix available: RHSA-2026:93454 · Red Hat
  18. 2026-11-02 Fix available: Red Hat Enterprise Linux AppStream EUS (v.9.6), Red Hat Enterprise Linux BaseOS EUS (v.9.6) · Red Hat
  19. 2026-11-06 Affected versions changed · Red Hat

References

Exploit 1

Patch 1

Advisory 2

See all 103 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences