cve: report only fixable CVEs, grouped by package with the version to bump

--ignore-unfixed so unpatchable base-OS CVEs don't drown the actionable ones.
Each finding now lists packages (installed -> fixed) and how many CVEs each bump
clears, criticals first, plus a 'N of M images clean' line — a to-do list, not a
wall of CVE IDs.

sources/cve.py

@@ -1,4 +1,9 @@
-"""Container-CVE source: Trivy-scan the images of running containers (HIGH/CRITICAL)."""
+"""Container-CVE source: Trivy-scan running images, reporting only FIXABLE HIGH/CRITICAL CVEs.
+
+`--ignore-unfixed` is the whole point: a CVE with no available patch isn't a to-do item,
+it's noise. We report only vulns that have a fix, grouped by package with the version to
+bump to — so each finding is a short, actionable list instead of a wall of CVE IDs.
+"""
 import json
 import subprocess
 
@@ -6,8 +11,6 @@ from soc import finding
 
 from . import _docker
 
-SEV = {"CRITICAL": "crit", "HIGH": "high", "MEDIUM": "med", "LOW": "low"}
-
 
 def _running_images():
     conts = _docker.get("/containers/json") or []
@@ -19,6 +22,19 @@ def _running_images():
     return seen
 
 
+def _scan(img):
+    """Fixable HIGH/CRITICAL vulns for one image (empty list on error)."""
+    try:
+        proc = subprocess.run(
+            ["trivy", "image", "--quiet", "--scanners", "vuln", "--ignore-unfixed",
+             "--severity", "HIGH,CRITICAL", "--format", "json", img],
+            capture_output=True, text=True, timeout=900)
+        rep = json.loads(proc.stdout or "{}")
+    except Exception:
+        return []
+    return [v for res in (rep.get("Results") or []) for v in (res.get("Vulnerabilities") or [])]
+
+
 def run():
     if not _docker.available():
         return None  # socket not mounted -> skip
@@ -26,29 +42,40 @@ def run():
     if not images:
         return None
 
-    findings = []
+    findings, clean = [], 0
     for img in images:
-        try:
-            proc = subprocess.run(
-                ["trivy", "image", "--quiet", "--scanners", "vuln",
-                 "--severity", "HIGH,CRITICAL", "--format", "json", img],
-                capture_output=True, text=True, timeout=900)
-            rep = json.loads(proc.stdout or "{}")
-        except Exception:
-            continue
-        vulns = [v for res in (rep.get("Results") or []) for v in (res.get("Vulnerabilities") or [])]
+        vulns = _scan(img)
         if not vulns:
+            clean += 1
             continue
         worst = "crit" if any(v.get("Severity") == "CRITICAL" for v in vulns) else "high"
-        ids = sorted({v.get("VulnerabilityID", "") for v in vulns if v.get("VulnerabilityID")})
+        # Group by package: which to bump, installed -> fixed, and how many CVEs it clears.
+        pkgs = {}
+        for v in vulns:
+            p = v.get("PkgName", "?")
+            d = pkgs.setdefault(p, {"inst": v.get("InstalledVersion", "?"),
+                                    "fix": v.get("FixedVersion", "?"), "n": 0})
+            d["n"] += 1
+        top = sorted(pkgs.items(), key=lambda kv: -kv[1]["n"])[:6]
+        evidence = "; ".join(f"{p} {d['inst']}→{d['fix']} ({d['n']})" for p, d in top)
+        if len(pkgs) > 6:
+            evidence += f"; +{len(pkgs) - 6} more package(s)"
         findings.append(finding(
-            f"cve-{img}", worst, f"{len(vulns)} HIGH/CRITICAL CVEs in {img}", host=img,
-            evidence=", ".join(ids[:10]) + (" …" if len(ids) > 10 else ""),
-            impact=["known-exploitable vulnerabilities in a running image"],
-            fix=[f"pull/rebuild a patched {img.split(':')[0]} image"]))
+            f"cve-{img}", worst,
+            f"{len(vulns)} fixable HIGH/CRITICAL CVE(s) in {img}", host=img,
+            evidence=evidence,
+            impact=[f"{len(vulns)} CVEs with an available patch across {len(pkgs)} package(s)"],
+            fix=[f"bump: {', '.join(p for p, _ in top)}" + (" …" if len(pkgs) > 6 else ""),
+                 f"or pull/rebuild a newer {img.split(':')[0]} base image"]))
 
+    findings.sort(key=lambda f: (f["sev"] != "crit", f["title"]))  # criticals first
+    good = []
+    if clean:
+        good.append(f"{clean} of {len(images)} image(s) have no fixable HIGH/CRITICAL CVEs")
+    if not findings and not good:
+        good.append("No fixable HIGH/CRITICAL CVEs in any running image")
     return {
-        "scope": f"{len(images)} running image(s)",
+        "scope": f"{len(images)} running image(s) — fixable HIGH/CRITICAL only",
         "findings": findings,
-        "good": [] if findings else ["No HIGH/CRITICAL CVEs in running images"],
+        "good": good,
     }