CVE catalog
CVE-2026-87776
compression is a Node.js and Express compression middleware. In versions before 1.8.2, when a client aborts the connection while a compressed response is still being sent, the zlib stream created to c
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.48% · Oct 25, 2026
compression is a Node.js and Express compression middleware. In versions before 1.8.2, when a client aborts the connection while a compressed response is still being sent, the zlib stream created to compress that response is never destroyed, so each aborted compressed response leaks its native zlib memory. A remote unauthenticated attacker can repeatedly open requests and disconnect early, exhausting the available memory and crashing the server. All applications using compression are affected. The issue is fixed in compression 1.8.2, and users should upgrade to 1.8.2 or later.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | node-compression | sid | 1.8.2+~1.8.1-1 | fixed |
| Debian | node-compression | forky | 1.8.2+~1.8.1-1 | fixed |
| Debian | node-compression | trixie | 1.7.4-3 | vulnerable |
| Debian | node-compression | bookworm | 1.7.4-3 | vulnerable |
| Npm | compression | Not reported | 1.8.2 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | node-compression | source | sid | 1.8.2+~1.8.1-1 | not yet assigned | Not reported | [1147519] |
| Debian | node-compression | source | forky | 1.8.2+~1.8.1-1 | not yet assigned | Not reported | [1147519] |
| Debian | node-compression | source | trixie | (unfixed) | not yet assigned | Not reported | [1147519] |
| Debian | node-compression | source | bookworm | (unfixed) | not yet assigned | Not reported | [1147519] |
| Npm | compression | npm | Not reported | 1.8.2 | Not reported | GHSA-VC2V-76PW-4V95 | Not reported |
Notes
[trixie] node-compression: Minor issue [bookworm] node-compression: Minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [node-compression]Affected
Details (2)
1.7.4-3· all · bookwormAffected
nvd · node-compression · debian · bookworm; nvd · node-compression · debian · 12
1.7.4-3· all · bookwormAffected
nvd · node-compression · debian · bookworm; nvd · node-compression · debian · 12
[Debian 13 (Trixie)]
- [node-compression]Affected
Details (2)
1.7.4-3· all · trixieAffected
nvd · node-compression · debian · 13
1.7.4-3· all · trixieAffected
nvd · node-compression · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/]
- [https://github.com/advisories/GHSA-vc2v-76pw-4v95]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-87776]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-87776]
- [https://security-tracker.debian.org/tracker/CVE-2026-87776]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-87776.json]
[Debian Security Tracker] · [FIRST EPSS] · [GitHub Advisory Database] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]