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01 Record

CVE-2026-87863

HSTS response erases persisted entries

UnratedPUBLISHEDCNA: curl
CNA base scoreUnratedNo CNA CVSS vector

02 Description

HSTS response erases persisted entries

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
0.26% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 18.4% of scored records. A rank, not a probability.
NVD base score
The NVD has published no score for this record
NVD CVSS vector
No NVD score to derive
NVD analysis status
Awaiting Analysis. NVD last modified this record on 2026-10-22.
Red Hat severity
Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-10-20 20:13Z8 DAYS AGO
Last updated
2026-10-20 20:13Z8 DAYS AGO
Reserved
2026-09-09
Assigning CNA
curl
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
  • CWE-201Insertion of Sensitive Information Into Sent DataBase
Data version
5.2
Document digest
71f14a8f40daba29bbe5be8a08a84cfda67825c4744f0f283c19e7a3d441c069

05 Affected products

VendorProductVersionsPlatforms
curlcurl8.22.0 to 8.22.0, 8.21.0 to 8.21.0, 8.20.0 to 8.20.0, 8.19.0 to 8.19.0, 8.18.0 to 8.18.0, 8.17.0 to 8.17.0, 8.16.0 to 8.16.0, 8.15.0 to 8.15.0, 8.14.1 to 8.14.1, 8.14.0 to 8.14.0, 8.13.0 to 8.13.0, 8.12.1 to 8.12.1, 8.12.0 to 8.12.0, 8.11.1 to 8.11.1, 8.11.0 to 8.11.0, 8.10.1 to 8.10.1, 8.10.0 to 8.10.0, 8.9.1 to 8.9.1, 8.9.0 to 8.9.0, 8.8.0 to 8.8.0, 8.7.1 to 8.7.1, 8.7.0 to 8.7.0, 8.6.0 to 8.6.0, 8.5.0 to 8.5.0, 8.4.0 to 8.4.0, 8.3.0 to 8.3.0, 8.2.1 to 8.2.1, 8.2.0 to 8.2.0—

06 References

07 Fixed in

Debian 13

  • curl
    No fix yet

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • curl
    No fix yet

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 24.04 LTS

  • curl
    Fixed in 8.5.0-2ubuntu10.16

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 26.04 LTS

  • curl
    Fixed in 8.18.0-1ubuntu2.8

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 26.10

  • curl
    Fixed in 8.20.0-2ubuntu11.1

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.