An allocation of resources without limits or throttling vulnerability exists in curl <v7.88.0 based on the "chained" HTTP compression algorithms, meaning that a server response can be compressed multiple times and potentially with differentalgorithms. The number of acceptable "links" in this "decompression chain" wascapped, but the cap was implemented on a per-header basis allowing a maliciousserver to insert a virtually unlimited number of compression steps simply byusing many headers. The use of such a decompression chain could result in a "malloc bomb", making curl end up spending enormous amounts of allocated heap memory, or trying to and returning out of memory errors.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 1
- First seenCVSS 6.5 · haxx, fedoraproject, debianNVD modified 2026-10-14 23:17
Affected (CPE criteria) 11
cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*cpe:2.3:a:splunk:universal_forwarder:*:*:*:*:*:*:*:*cpe:2.3:a:splunk:universal_forwarder:9.1.0:*:*:*:*:*:*:*
References 13
- https://hackerone.com/reports/1826048 Exploit, Issue Tracking
- https://lists.debian.org/debian-lts-announce/2023/02/msg00035.html Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BQKE6TXYDHOTFHLTBZ5X73GTKI7II5KO/ Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202310-12 Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230309-0006/ Third Party Advisory
- https://www.debian.org/security/2023/dsa-5365 Third Party Advisory
- https://hackerone.com/reports/1826048 Exploit, Issue Tracking
- https://lists.debian.org/debian-lts-announce/2023/02/msg00035.html Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BQKE6TXYDHOTFHLTBZ5X73GTKI7II5KO/ Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202310-12 Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230309-0006/ Third Party Advisory
- https://www.debian.org/security/2023/dsa-5365 Third Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html