Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Sliver versions before 1.7.6 are vulnerable to memory exhaustion through the HTTP(S) listener's PNG decoder, because there is no limit on the number of pixels in a PNG it accepts. An unauthenticated attacker with network access to an open HTTP listener can send crafted PNG data to consume server memory, which can crash the host. Upgrade to Sliver 1.7.6 or later.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 8.2 | High | 4.0 | CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0053, the 45th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:11 UTC First seen by agentprime
- 31 Oct 2026, 14:11 UTC Confirmed by OSV
- 5 Nov 2026, 20:52 UTC Confirmed by the CVE List
- 5 Nov 2026, 21:18 UTC Confirmed by NVD